HLRnet.com: Freeware: Programming Freeware: .NET

.NET

• .NET Colors Explorer
  The tool is intended to help .NET Developers (targeting on WinForms) search a color which could be set with the standard enum and classes (KnownColor, SystemColors, Color).
  
  http://netcolorsexplorer.codeplex.com/
• The Fluent.NET library introduces extension methods to make .NET code easier to read and more fluid to write.
  
  http://fluentnet.codeplex.com/
• NArgs
  .NET port of 'Args', a simple argument parser, originally written by Robert C. Martin.
  
  http://nargs.codeplex.com/
• Batik is ASP.NET Controls & ASP.NET Ajax 4 Helper to make easier for ASP.NET Ajax client binding. You can create a two way binding (get and save) using Batik dataview. All field will be automatically filled into datasource with single line of code.
  http://batik.codeplex.com/
• QuickSharp is a minimalist C# IDE for Microsoft .NET.
  
  http://sourceforge.net/projects/quicksharp/
• Vuzit.Net is a library that allows developers to directly access the Vuzit Web Service API through the Microsoft .NET Framework or Mono via any language supported by the platform. It allows developers to automate the upload, download, and removal of electronic (PDF, doc, PPT, XLS, etc.) documents through the Vuzit Web Services API. You can use this library through any .NET enabled language such as C#, Visual Basic.NET (VB.NET), JavaScript (JScript.NET), LUA, Pascal, or Python.
  
  http://freshmeat.net/projects/vuzitnet
• Ajax Server Controls: Building the equivalent serverside controls in AJAX, based on the Microsoft AJAX Library.
  
  http://ajaxservercontrols.codeplex.com/
• AddyScript is a scripting engine for .Net. You can use it to add scripting capabilities to your business applications or simply as a learning tool for your children.
  
  http://addyscript.codeplex.com/
• SharpPcap is a packet capture framework for the .NET environment, based on the famous pcap/WinPcap libraries. It provides an API for capturing, injecting, analyzing, and building packets using any .NET language such as C# and VB.NET.
  
  http://freshmeat.net/projects/sharppcap
• Git# is a C# implementation of the Git version control system for the .NET platform. It is meant to be fully compatible to the original Git implementation in C for Linux. It can be used as a stand-alone command line application (potentially replacing msysGit on Windows) or as a library for applications such as GUI frontends or plugins for IDEs.
  
  http://freshmeat.net/projects/gitsharp
• Brainee
  The purpose of the Brainee project is to provide a full artificial intelligence framework to .Net developers.
  
  http://brainee.codeplex.com/
• Microsoft Visual Web Developer 2008 Express
  http://www.freewarefiles.com/Microsoft-Visual-Web-Developer-Express_program_17937.html
• .Net Error Resource Management
  Framework for managing error message strings in resource files and exceptions using enumerations for message access.
  http://errormanagement.codeplex.com/
• PHP Toolkit for ADO .NET Data Services: PHP Toolkit for ADO .NET Data Services enables PHP developers to access data services created using ADO .NET Data Services framework.
  http://phpdataservices.codeplex.com/
• Instant Localization Generator
  http://instantlocgen.codeplex.com/
• PDFSharp
  A .NET library for processing PDF
  http://pdfsharp.codeplex.com/
• Vuzit.Net is a library that allows developers to directly access the Vuzit Web Service API through the Microsoft .NET Framework or Mono via any language supported by the platform. It allows developers to automate the upload, download, and removal of documents through the Vuzit Web Services API. You can use this library through any .NET enabled language such as C#, Visual Basic.NET (VB.NET), JavaScript (JScript.NET), LUA, Pascal, or Python.
  
  http://freshmeat.net/projects/vuzitnet
• Command Line Parser
  Provides a easy and strong typed command line parser.
  
  http://cmdlineparser.codeplex.com/
• The icon.NET proramming language is a .NET language that has similar features to MSIL. The compiler can generate an assembly from the source code input.
  
  http://iconnet.codeplex.com/
• CoNatural Components
  
  http://conatural.codeplex.com/
• Rich Control Library
  Provides improved or enhanced controls for WinForm, such as TextBox with prompt text support, kinds of validation, and advanced keyboard and mouse events monitor.
  
  http://richcontrol.codeplex.com/
• Asp.net 2.0 Web Crop Image Control
  Asp.net 2.0 web custom control allows developers implement easy to use image cropping functionality on their projects.
  
  http://webcropimage.codeplex.com/
• Xbox Controller as User Interface
  This application allows users to use their Xbox 360 Controller for Windows as a user input device. It allows users to dynamically select a key layout and create custom layouts to use and distribute. It is written in pure C# and references the XNA framework and the WIN32 API.
  
  http://xcui.codeplex.com/
• Auto Complete Textbox for VB.Net
  http://autocompletetextbox.codeplex.com/
• Language Resources
  A .Net C# application that generates code and resources to implement a multi-lingual user interface in both C# and VB.
  http://languageresources.codeplex.com/
• Ajaxian Toolbar ASP.NET WebControl
  This toolbar is an Ajaxian ASP.NET WebControl for WebForms and has both a server-side and client-side API. The control is written in C# with the 3.5 BCL and uses the MS AJAX client library exclusively (it does not depend on the Ajax Toolkit or any other JavaScript library). It also uses CSS heavily for its presentation and its style sheet can be easily customized.
  
  http://toolbar.codeplex.com/
• Language Resources
  A .Net C# application that generates code and resources to implement a multi-lingual user interface in both C# and VB.
  
  http://languageresources.codeplex.com/
• .NET Extensions
  The .NET Extensions project is a growing library of C# und VB.NET extension methods.
  
  http://dnpextensions.codeplex.com/
• CommandLine Parser Library
  CommandLine Parser Library lets you easily define strongly typed command line arguments, allows automatic parsing of command line arguments and mapping the values to properites of your objects.
  
  http://commandlineparser.codeplex.com/
• Northwind.NET
  The Northwind.NET site was created to develop and keep a set of sample applications demonstrating various modern technologies and development practices used within .NET Framework and Visual Studio 2008.
  
  http://northwind.codeplex.com/
• Fluent Ado.Net is a lightweight wrapper around Ado.Net, designed to be used in a fluent manner, and encourage code reused.
  http://fluentado.codeplex.com/
• GMap.NET
  Great Maps for Windows Forms & Presentation
  
  http://gmap4dotnet.codeplex.com/
• Web Compiler
  It is a visual tool for compiling asp.net pages, useful to Visual Web express development users and who wants to compile a asp.net page without Visual Studio
  
  http://webcompiler.codeplex.com/
• AlphaFS is a .NET library providing more complete Win32 file system functionality to the .NET platform than the standard System.IO classes. Features highlights: creating hardlinks, accessing hidden volumes, enumeration of volumes, transactional file operations and much more.
  
  http://alphafs.codeplex.com/
• MyCaptcha!
  Free Asp.net Captcha control
  
  http://mycaptcha.codeplex.com/
• Gaia Ajax Widgets is an Ajax library for ASP.NET and Mono. It is a "high-level library", meaning it abstracts away JavaScript 100%, and the developer doesn't have to write anything other than his favorite .Net language like C#, VB.NET, IronPython, or Boo (Mono).
  
  http://freshmeat.net/projects/gaw/
• On-the-Fly .NET Compiler - tool or library for compilation CLR language in real time, also in memory, and following execution. This can be used for desktop and web scripting, remote compilation, etc. It's free, written on C# and multiplatform. 
  
  http://sourceforge.net/projects/fly/
• Open Diagram
  Open Diagram is the definitive open source .net diagramming component library for the .Net framework, with support for both forms and web environments.
  
  http://opendiagram.codeplex.com/
• The Open Toolkit is a strongly-typed and cross-platform OpenGL and OpenAL wrapper for C# and other Mono/.Net languages. It can be used standalone (in the spirit of GLFW or SDL) or integrated in GTK# and WinForms applications.
  
  http://freshmeat.net/projects/opentk
• A Professional Ribbon control
  A project on an Office-like Ribbon control.
  
  http://ribbon.codeplex.com/
• MS Virtual Earth Winforms User Control
  A Winforms User Control for displaying and manipulation maps using Microsoft Visual Earth.
  
  http://www.codeplex.com/VEarthControl
• Odyssey WPF and ASP.NET Controls
  
  http://www.codeplex.com/odyssey
• Fluid - Windows Mobile .NET Touch Controls
  Fluid is a .NET 2.0 control library for Windows Mobile 6.0/6.1 with touch controls.
  
  http://www.codeplex.com/fluid
• Bling is a C#-based library for easily programming images, animations, interactions, and visualizations on Microsoft's WPF/.NET. Bling is oriented towards design technologists, i.e., designers who sometimes program, to aid in the rapid prototyping of rich UI design ideas. Students, artists, researchers, and hobbyists will also find Bling useful as a tool for quickly expressing ideas or visualizations. Bling's APIs and constructs are optimized for the fast programming of throw away code as opposed to the careful programming of production code.
  
  http://www.codeplex.com/bling
• AsDoclet can be used to generate Actionscript and C# files out of Java sources. Such a tool is useful for RIA and client/server applications where value objects are transmitted between server and client as serialized data that should be deserializable on both ends again. That includes remoting technologies like Flash Remoting, RTMP, Blaze DS, Red5, and Hessian.
  
  http://freshmeat.net/projects/asdoclet/
  
• Bespoke Open Sound Control Library
  A .NET Open Sound Control library.
  “Open Sound Control (OSC) is an open, transport-independent, message-based protocol developed for communication among computers, sound synthesizers, and other multimedia devices.” (from http://opensoundcontrol.org/spec-1_0)
  
  http://www.codeplex.com/bespokeosc
• VST.NET
  VST.NET allows VST Plugin developers to write Plugins in a .NET language. It makes the transition between the C++ and .NET world smooth and easy. The Framework built on top of the interop layer provides a clear and structured architecture accelerating development considerably.
  
  http://www.codeplex.com/vstnet
• Merlin Wizard Framework
  A framework for easily making wizards in .NET. Originally developed by IONA Technologies for its Artix Connect for WCF product, Merlin provides a delicate blend of power and simplicity for all your wizard-making needs.
  
  http://www.codeplex.com/merlin
• NProcessMx is a lightweight and easy exendable .Net Application Server which can be used standalone or embedded into existing applications. A key feature of NProcessMx is the modular architecture and the hot-deployment support.
  
  http://sourceforge.net/projects/nprocess/
• Ra-Ajax is an AJAX library for ASP.NET and Mono that abstracts away JavaScript completely.
  
  http://freshmeat.net/projects/ra-ajax/
• InfoCardSelector
  ASP.NET WebControl to easily integrate Information Cards into ASP.NET applications
  http://www.codeplex.com/InfoCardSelector
• Asp.net 2.0 Web Crop Image Control
  http://www.codeplex.com/webcropimage/
• Script.NET
  Script .NET or S# is a language that provides scripting functionality in .NET applications, embedding custom functionality into CLR applications.
  It is very simple, yet powerful enough to satisfy usual needs for scripting your application.
  
  http://www.codeplex.com/scriptdotnet
• Enterprise Service Bus (ESB) Framework for the Microsoft .NET Platform
  
  http://www.codeplex.com/KeystrokeEsbNet
• Linquid
  Linquid is a functional GUI library for .NET 3.5, Mono 2.0 and .NET Compact Framework 3.5.
  It provides LINQ interface to layout of WinForms controls and
  composition of reactive values.
  
  http://www.codeplex.com/linquid
• Faker
  Faker is a .NET library used to generate fake data - names, addresses, e-mails, dates etc.
  
  http://www.codeplex.com/faker
• Fluent DateTime
  A set of (Ruby inspired) C# Extension Methods for easier and more natural DateTime handling and operations in .NET.
  http://www.codeplex.com/fluentdatetime
• Permutation and Combination Libraries
  
  http://www.codeplex.com/permutationTools
• Minima Blog Engine
  Minima is a blog engine built on the Themelia Framework 2.0 and WCF. Therefore, it provides a completely new paradigm for blog engines. It's also used to power NetFXHarmonics.com and is used by Jampad Technology, Inc. in .NET training.
  
  http://www.codeplex.com/Minima
• NCalc is a mathematical expressions evaluator in .NET. NCalc can parse any expression and evaluate the result, including static or dynamic parameters and custom functions.
  
  http://www.codeplex.com/ncalc
  
• ExcelDataReader is a lightweight and fast Excel file reader writhed in native c# code.
  
  http://www.codeplex.com/ExcelDataReader
• Ora
  Ora is a Visual Studio 2008 add-in that provides an instant grouped overview of the class, interface or struct you are viewing or editing. Because the members are grouped in the order of your choosing, and the view instantly appears when you click in the code of a class, there is no need to abuse the #region feature. Just keep Ora docked next to the source editor and the equivalent groupings just appear automatically.
  
  http://www.codeplex.com/ora
• DotNetZip - Zip file manipulation in .NET languages
  DotNetZip is a small, easy-to-use class library for manipulating .zip files. It can enable .NET applications written in VB.NET, C#, any .NET language, to easily create, read, and update zip files.
  
  http://www.codeplex.com/DotNetZip
  
• MS Office Wrapper for .NET
  .NET wrapper assemblies for working with MS Office.
  
  http://www.codeplex.com/msofficefornet
• WPF Shape Demo
  This WPF application demos shape objects in WPF,such as Point,Rectangle,Polygon,Polyline and so on.
  
  http://www.codeplex.com/wpfshapedemo
• Salamanca
  Salamanca is a Business Applications Software Factory. It is aimed at building more reliable business applications through a set of dedicated libraries, patterns, languages, tools and good practices.
  A business application is defined as a software that handles business specific data (you can think of it as a low scale enterprise application). Salamanca is designed to help managing the whole life cycle of business data : storage, display, edition, validation, processing...
  
  http://www.codeplex.com/salamanca
  
• TFS Migration and Synchronization Toolkit
  The purpose of the TFS Migration and Synchronization Toolkit is to enable customers of Team Foundation Server (TFS) to build custom tools that enable migration and synchronization with other version control (VC) and work-item tracking (WIT) systems. Customers have asked us for this toolkit to help them integrate TFS into their existing development environments. Please give it a try and let us know what you think.
  
  http://www.codeplex.com/MigrationSyncToolkit
  
• Team System - Work Item Spell Checker
  New Custom Control for Team System will allow you to perform Spell Check on any field inside the Work Item.
  Support all languages.
  
  http://www.codeplex.com/WITSpellChecker
• C#Mail
  C#Mail is a library to send or receive mail written in C#.
  
  http://www.codeplex.com/csharpmail
• Facebook Developer Toolkit
  Facebook toolkit 2.0 RC2 is ready for consumption
  Included in this release is
  1. The new facebook toolkit API that leverages Linq2XSD for parsing and entity objects
  2. MSTest Unit tests for each method along with Test lists for every major functional area.
  a. Note: Some of these tests fail, but this is because some of the API’s from facebook are in beta themselves. (This means we’ve actually tested every method in the toolkit and know that a method works or doesn’t)
  3. A desktop application demonstrating consuming the new API.
  4. Documentation for all methods, created by Sandcastle.
  5. IFrame and FBML Sample applications demonstrating using the new toolkit and facebook profile features.
  
  http://www.codeplex.com/FacebookToolkit
• Helper 2008
  Helper is a collection of utilities and library to simple the common .NET programming tasks.
  http://www.codeplex.com/Helper2008
• Super Library (SuperLib) is a collection of useful utilities for every day use in your .NET projects. Written in VB.NET it contains many generic functions brought together over the years into a single library, helping with HTTP, Email, String, Null and Validation handling. The aim of this project to have a massively useful repository of functions and utilities for inclusion in every application we develop. Writing such functions can be tedious and time-consuming, distracting from the core functionality of the application in hand - so let's build a re-usable generic library that deals with this - so you can concentrate on building the interesting stuff!
  
  http://www.codeplex.com/superlib
• Ra-Ajax is an AJAX library for ASP.NET and Mono that abstracts away JavaScript completely.
  
  http://freshmeat.net/projects/ra-ajax/
• Web Feed Generator
  The Web Feed Generator project provides an easy way to add web feeds to your ASP.Net web site.
  
  http://www.codeplex.com/WebFeedGenerator
  
• Google Custom Search
  This custom ASP.Net control allows you to quickly implement an internal search engine in your public website using "Google Custom Search".
  It embeds the search page in your site, and displays search results in your own layout using XSLT transformations.
  
  http://www.codeplex.com/GoogleCustomSearch
• OpenID Membership Provider
  OpenID Membership Provider is an ASP.Net Membership provider and login control that is compatible with the OpenID Authentication 2.0 implementation.
  
  http://www.codeplex.com/OpenIDMembership
• TytanNET
  TytanNET is an extension for Microsoft Visual Studio 2005 and 2008. It adds a set of useful toolwindows, refactoring methods, debugging-time visualizers - all integrated with the VS IDE and easy to call.
  
  http://www.codeplex.com/tytannet
• Pagination Class for ASP.NET MVC 
  
  http://www.codeplex.com/pagination
• LazzyTab
  LazzyTab is a flexible firefox-like tab control for windows forms.
  
  http://www.codeplex.com/lazzytab
• Visual Studio Comparison Tools
  Visual Studio Comparison Tools is a add-in for Visual Studio which uses external tools to compare files, folders and clipboard. Features: Comparing two files, selecting folders for comparison from the solution explorer and comparing (and merging) clipboard to a file or selected area in a file
  
  http://www.codeplex.com/ComparisonTools
• CSharp or Visual Basic class generator from XSD 
  
  http://www.codeplex.com/Xsd2Code
• Dropthings - Ajax Web Portal 
  Ajax Web Portal built on Linq, Workflow Foundation and ASP.NET AJAX. Code is in Visual Studio 2008 using .NET 3.0 and .NET 3.5.
  
  http://www.codeplex.com/dropthings
• C# .NET Generic Matrix Maths Library
  Public domain .NET matrix maths library, including a generic matrix base class (supporting matricies with elements of any object type) and a DoubleMatrix class supporting a range of mathematical operations using Double elements.
  
  http://www.codeplex.com/matrixMath
• ContextMenu Manager 
  ContextMenu Manager is a .NET class library (dll) that can manage editable control's (like textbox, combobox, numericupdown, ...) ContextMenu and relate it's item (Copy, Cut, Paste, ...) to toolstripitem or menustripitem.
  
  http://www.codeplex.com/cmm
• WebError Logging
  WebError Logger is an open source project whose purpose is to log and report unhandled/handled exceptions in ASP.NET web applications on server side as well as on client side for Ms-Ajax application.
  The project is inspired by ideas ELMAH (Error Logging Module and Handler) and born due limitation, complexity and unnecessary over engineering.
  
  http://www.codeplex.com/WebErrorLogger
• Enterprise ASP.NET Suite
  Incorporates everything you need for an enterprise ASP.NET application into a suite of easy-to-use libraries. There's support for easy localization, e-mail (and e-mail templating with localization), custom configuration on a per-machine basis, URL rewriting, Windows services with UAC, payment gateway processing, and more.
  
  http://www.codeplex.com/aspnetSuite
• NetAsm provides a hook to the .NET JIT compiler and enables to inject your own native code in replacement of the default CLR JIT compilation. With this library, it is possible, at runtime, to inject x86 assembler code in CLR methods with the speed of a pure CLR method call and without the cost of Interop/PInvoke calls.
  
  http://www.codeplex.com/netasm
• Command Line Parser Library
  
  http://www.codeplex.com/commandline
• Third Hand - Use your voice to control Visual Studio
  Third Hand is a Visual Studio Add-in that allows you to use to your voice to control Visual Studio. Rather than navigate the toolbars or use the menu, say "Solution Explorer", or "Properties" and those windows will open for you. This keeps your hands on the keyboard, hopefully increasing your efficiency.
  The add-in makes use of the System.Speech namespace introduced in .NET 3.0. It should work on any system with SAPI installed and speech recognition enabled.
  
  http://www.codeplex.com/thirdhand
• Tree Surgeon is a .NET development tree generator. Just give it the name of your project, and it will set up a development tree for you in seconds. More than that, your new tree has years worth of accumulated build engineering experience built right in.
  
  http://www.codeplex.com/treesurgeon
• Argotic Syndication Framework
  
  http://www.codeplex.com/Argotic
• CodeComment.NET
  A Visual Studio Add-in that allows source code reviewers to easily mark and comment source code. The comments are stored in separate files together with information about the source file, project name, date when comment was made and other useful information.
  
  http://www.codeplex.com/CodeComment
• WSS / MOSS Build Tasks
  A set of MSBuild tasks to quickly build WSS and MOSS compatible manifest.xml and solution (.wsp) packages from within Visual Studio.
  
  http://www.codeplex.com/wssmossbuildtasks
• ConfigManager.Net executes embedded instructions in the app.config\web.config. These instructions are stored in the file as XML comments and executed in place. A number of instructions are supported to allow you to copy in sections of other XML file or XML fragments, change values within the config file or remove sections of the config file.
  Instructions can be executed conditionally and contain references to the environment variables as well as built-in properties.
  
  http://www.codeplex.com/ConfigManager
• Boxd
  A .NET library for creating console application user interfaces.
  
  http://www.codeplex.com/boxd
• XOOXml
  A strong-typed library class based on OOXML SDK 1.0, to create Xlsx files
  
  http://www.codeplex.com/xoox
• Web Client Software Factory
  The Web Client Software Factory (WCSF) provides a set of guidance for architects and developers building enterprise Web applications. The factory includes samples, reusable code and a guidance package which automates key development tasks from within Visual Studio.
  
  http://www.codeplex.com/websf
• edtFTPnet/Free is a .NET FTP library written in C#. Widely used around the world, it is robust and proven, with a rich API. It includes extensive event monitoring, transfer resumption, and much more. It has been tested and is compatible with Mono 1.2.x.
  
  http://freshmeat.net/projects/edtftpnet/
• ArcEngine is a 2D Arcade engine dedicated to retro gaming. Fully written in C# and OpenGL with the use of the Tao framework.
  
  http://www.codeplex.com/arcengine
• Splicer project
  A library for the .Net framework that aims to simplify developing applications for editing and encoding audio and video using DirectShow
  
  http://www.codeplex.com/splicer
• ASP.NET Upload Utility: Big Mailer
  
  http://www.codeplex.com/bigmailer
• GPL Free PS to PDF Converter
  
  http://www.codeplex.com/freeconverter
• Managed Library for Nintendo's Wiimote
  
  http://www.codeplex.com/WiimoteLib/
• InterSyndicator is a .NET 3.5 library written using C# that offers a quick and easy way for developers to integrate RSS feeds into their applications.
  
  http://www.codeplex.com/InterSyndicator
• GoogleMap Control
  Wraps Google Maps API as ASP.NET custom control. Offers extremely easy and fast way of adding Google Maps API support on your ASP.NET pages.
  
  http://www.codeplex.com/googlemap
• AccessKeyHighlighter AJAX Control
  The AccessKeyHighlighter is a control for the Microsoft ASP.NET AJAX framework that provides various options for highlighting access keys on web forms when the user presses their browser's access key shortcut key, e.g. Alt in Internet Explorer and Safari, Shift+Alt in Firefox.
  
  http://www.codeplex.com/accesskeyhighlighter
• FxExtensions - Extending the .NET Framework
  
  http://www.codeplex.com/FxExtensions
• WAP.NET is a library that provides access to WAP functionality on Windows Mobile platforms using .NET CF (Compact Framework).
  
  http://www.codeplex.com/wap
• Visual WebGui is a framework that extends ASP.NET over AJAX. It enables Microsoft WinForms designer & all 125 out of the box controls including data and property grids for developing IT level AJAX GUIs. Visual WebGui simple, application dedicated designer saves up to 90% in programming (proven), without limiting the developer freedom to extend and customize. It enables migration of legacy VB6 & WinForms to web without rewrite, off line or smart client and a choice of 2 side by side presentation layers DHTML or Silverlight
  
  http://www.codeplex.com/visualwebgui
• Numeric input controls for Windows.Forms
  A control-library that provides (Windows.Forms) controls to input numerical values, on a user friendly way.
  
  http://www.codeplex.com/WinFormNumberBox
• Mollom for .NET is a library to access the Mollom anti-spam service from .NET applications.
  
  http://www.codeplex.com/mollom
• SharpTemplate.NET is a lightweight general-purpose template engine for .NET 2.0. It is very easy to use, yet very powerful. It supports a pluggable syntax, full C# compliant expression parser, caching and macros.
  
  http://www.codeplex.com/SharpTemplate
• DbAccess is a library for providing simplicistic interfaces for almost all ADO .NET-compliant database needs. The purpose of the library is to reduce the coarse-grain differences between relational databases and object-oriented architectures, hiding database-specific details
  
  http://www.codeplex.com/DbAccess
• Bookmark.Net is a .Net based social bookmarking application developed using the ASP.NET MVC Framework.
  
  http://www.codeplex.com/BookmarkdotNet
• InlineEditBox.net is a .NET control that adds in-line text editing capabilities with one line of code. This is great for forms and administrative areas giving you the possibility to edit a piece of text inline, and submitting it not via a submit button, but instead with AJAX
  
  http://www.codeplex.com/InlineEditBox
• SharpTemplate.NET is a lightweight general-purpose template engine for .NET 2.0. It is very easy to use, yet very powerful. It supports a pluggable syntax, full C# compliant expression parser, caching and macros.
  
  http://www.codeplex.com/SharpTemplate
• WpfIpodControls
  It's an assembly that contains WPF styles and controls with IPod Touch look like
  
  http://www.codeplex.com/WpfIpodControls
  
• MS Virtual Earth Winforms User Control
  A Winforms User Control for displaying and manipulation maps using Microsoft Visual Earth.
  I have written a simple c# user control to include in your winform applications. It it no more than a web browser control with added functionality for displaying maps using Microsoft Visual Earth. The current release contains:
  Add and remove layers
  Find locations and show them using pushpins
  
  http://www.codeplex.com/VEarthControl
  
• Mashup Developing Tool
  Mashup is a hybrid web application, a web application that combines data from more than one source. It creates new web service using services from more than one source irrespective of implementation detail of different sources used. Contents used in mashup are typically sourced from a third party through a public interface or so called APIs. Many people are experimenting with mashups using Microsoft, Google, eBay, Amazon, Flickr, and Yahoo APIs, which has led to the creation of Mashup Tools.
  
  http://www.codeplex.com/mashuptool
• The Web Client Software Factory (WCSF) provides a set of guidance for architects and developers building enterprise Web applications. The factory includes samples, reusable code and a guidance package which automates key development tasks from within Visual Studio.
  Using the Web Client Software Factory assets, developers can create Composite Web applications composed of independently developed and deployed modules. These modules are dynamically brought together at runtime into a common shell. Additionally the factory includes support for ASP.NET AJAX thus providing users with a richer and more responsive user experience.
  
  http://www.codeplex.com/websf
• EasyDiagram.NET
  Free ASP.NET diagram control
  
  http://www.codeplex.com/EasyDiagram/
  http://www.easydiagram.net/
• NArrange is a tool for arranging .NET source code. This code beautifier automatically sorts and organizes class members into groups or regions. Currently, C# and VB code files are supported.
  http://freshmeat.net/projects/narrange/
• SharpMap is an easy-to-use mapping library for use in web and desktop applications. It provides access to many types of GIS data, enables spatial querying of that data, and renders beautiful maps. The engine is written in C# and based on the .Net 2.0 framework. SharpMap is released under GNU Lesser General Public License
  
  http://www.codeplex.com/SharpMap
• dotConnect for SQLite Standard Edition
  An enhanced data provider for SQLite
  http://www.filecluster.com/Software-Development/Components-Libraries/Download-dotConnect-for-SQLite-Standard-Edition.html
• JOpt.ASP is a consistent advancement of JOpt.NET that exposes the unique JOpt vehicle routing capabilities via standard HTTP/SOAP interfaces. JOpt.ASP has been designed for enterprise applications and Web-based solutions that are based on ASP.NET. JOpt.ASP provides its optimization facilities through a stateful Web service that comes with a comfortable programming interface that is very similar to JOpt.NET.
  
  http://freshmeat.net/projects/jopt.asp/
• Resource .NET
  A utility to easily refresh embedded graphic resources in a .NET assembly.
  http://www.freewarefiles.com/Resource-NET_program_7745.html
• Free Quick Reference Pack
  Quick reference cheat sheets for C#, VB.NET, XHTML, Javascript, NUnit, ASCII chart
  http://www.freewarefiles.com/Free-Quick-Reference-Pack_program_37528.html
  http://www.kellermansoftware.com/
• XMLUnit provides assertions and supporting class libraries to test various properties of generated pieces of XML using a popular testing framework. It supports finding the differences between two pieces of XML, validating documents against DTDs or XML Schemas, testing the results of XPath expressions, or asserting properties of Nodes exposed via DOM traversal. 
  http://freshmeat.net/projects/xmlunit/
• YahtzeeSharp is a Yahtzee game written in C#. It has been built using Mono/GTK# and uses XML to store data.
  
  http://freshmeat.net/projects/yahtzeesharp/
  http://www.brdstudio.net/yahtzeesharp/
• The Irrlicht Engine is a high performance real-time 3D engine written and usable in C++, and also available for .NET languages. It is completely cross-platform, using D3D, OpenGL, and its own software renderer.
  
  http://freshmeat.net/projects/irrlicht/
• Gimp# is a C# wrapper around the GIMP API. It also offers a plugin framework. This enables users to quickly write new GIMP plugins using .NET or Mono.
  
  http://freshmeat.net/projects/gimpsharp/
• RAPPTOR is a semantic technologies-enabled Web application server for the .Net platform. It integrates relational, hierarchical, and even semantic data structures into a common API and offers broad DBMS connectivity through pluggable drivers. It is designed for rapid application development, a code-driven development style, and platform-independence (Mono and MS .Net 1.0/1.1/2.0/3.0).
  
  http://freshmeat.net/projects/rapptor/
• Greengrass is a C# framework providing a high-level API for the Resource Description Framework (RDF), allowing RDF triples to be parsed, stored, and manipulated. Greengrass supports serialization and deserialization of CLR types to plain RDF, OWL, and other RDF vocabularies. Greengrass should work with any CLR-complied language, like C#, BOO, IronPython, Nemerle, IKVM Java, and VB.NET.
  
  http://freshmeat.net/projects/greengrass/
• Team Foundation for Mono is an implementation of the Team Foundation libraries and related client programs for the .NET platform. Team Foundation is a collection of collaborative technologies that support a team effort to deliver a product. This project currently focuses on the SCM related libraries and tools. It includes a fairly functional version of the TF client used to access the SCM capabilities of Team Foundation servers. In some respects, its usability exceeds that of the standard TF tool. It also includes some subcommands from the TF Power Tool, and leverages the Gnome Keyring when available.
  
  http://freshmeat.net/projects/opentf
• Optnik is a CLR library to help with option parsing and command execution. It is very similar to Mono.Options but has support for sub-commands, each with its own private set of options. Optnik is written in C# and runs on Mono and MS .NET (and probably on other CLR implementations too).
  
  http://freshmeat.net/projects/optnik/
• Archivist is a command-line program and C# library that provides standard archiving and compression utilities.
  
  http://freshmeat.net/projects/archivist/
• Byldan is a framework for managing the build lifecycle of .NET applications. Its goal is to support multiple platforms (Linux/Windows) and multiple compiler vendors (Novell/Microsoft).
  
  http://freshmeat.net/projects/byldan/
• RAPPTOR is a semantic technologies-enabled Web application server for the .Net platform. It integrates relational, hierarchical, and even semantic data structures into a common API and offers broad DBMS connectivity through pluggable drivers. It is designed for rapid application development, a code-driven development style, and platform-independence (Mono and MS .Net 1.0/1.1/2.0/3.0).
  
  http://freshmeat.net/projects/rapptor
• Consonance is a .NET/Gtk# client for the OpenGroupware.org groupware server using the ZOGI API. It aims to support the complete feature set of the groupware server.
  
  http://freshmeat.net/projects/consonance/
• NeatUpload allows ASP.NET developers to stream uploaded files to disk and allows users to monitor upload progress. It works under Mono's XSP/mod_mono as well as Microsoft's ASP.NET implementation and features two custom controls. InputFile allows the user to select a file to upload and ProgressBar displays the upload progress either inline or in a popup. ProgressBar even allows users without JavaScript to see upload progress.
  
  http://freshmeat.net/projects/neatupload/
• Appomattox is a project to build a set of cross-platform mapping objects for the .NET framework. It is also a desktop GIS application. It currently supports the following data sources: shapefiles, raster data (JPEG, GIF, TIFF, bitmap, and PNG), and PostGIS. The goal of Appomattox is to provide an elegant and intuitive user interface for mapping and Geographic Information Systems (GIS) without sacrificing power and functionality.
  
  http://freshmeat.net/projects/appomattox/
• Microsoft Computational Biology Tools
  Computational biology tools from Microsoft Research's Machine Learning and Applied Statistics group: PhyloD (Phylogeny-Based Association Analysis), Epitope Prediction, HLA Assignment, HLA Completion
  
  http://www.codeplex.com/MSCompBio
• NBidi is a .NET implementation of the BIDI algorithm as described in http://www.unicode.org/reports/tr9/.
  
  http://freshmeat.net/projects/nbidi/
• C# Java Virtual Machine is a tiny implementation of the Java VM, including simple native classes. It written using the C# language. The VM is very easily expandable by writing additional native or Java classes.
  
  http://freshmeat.net/projects/szjavavm
• Gimp# is a C# wrapper around the GIMP API. It also offers a plugin framework. This enables users to quickly write new GIMP plugins using .NET or Mono.
  
  http://sourceforge.net/projects/gimp-sharp/
• AIMLBot (Program#) is a small, fast, standards-compliant yet easily customizable .NET DLL implementation of an AIML (Artificial Intelligence Markup Language) based chatter bot. It boasts cross-platform compatibility, a modular architecture, a simple and logical API, standards compliant AIML support with the option for extensions via custom tags, very small size (currently only 56k), and very fast performance (over 30,000 categories processed in under a second).
  
  http://freshmeat.net/projects/aimlbot/
• Silverfrost FTN95
  With Silverfrost FTN95 (Fortran for Windows) you can create console based, conventional Windows and Microsoft .NET applications
  http://www.softpedia.com/get/Programming/Coding-languages-Compilers/Silverfrost-FTN95.shtml
• Mono for Windows
  Allows IT and ISV developers to build Linux and cross-platform applications.
  http://www.freewarefiles.com/program_10_111_19575.html
• Nini is an uncommonly powerful .NET configuration library designed to help build highly configurable applications quickly.
  
  http://freshmeat.net/projects/nini
• Open License
  Open source .NET license manager
  
  http://www.spextreme.com/
• NLog is a .NET logging library designed with simplicity and flexibility in mind. With NLog you can process diagnostic messages emitted from any .NET language, augment them with contextual information, format them according to your preference, and send them to one or more targets. The API (application programming interface) is similar to log4net, and the configuration is very simple. NLog uses a routing table while log4net uses a logger hierarchy with attachable ppenders. This makes NLog's configuration very easy to read and maintain.
  
  http://freshmeat.net/projects/nlog
• Npgsql is a .NET data provider for PostgreSQL. It allows .NET programs to connect to PostgreSQL 7.x and 8.x servers.
  
  http://freshmeat.net/projects/npgsql/
• BytesRoad.NetSuit Library
  Free and open source network library for .NET platform.
  http://www.freewarefiles.com/program_10_116_16862.html
• SDL.NET is a set of object-oriented CLS-compliant .NET bindings for the SDL gaming library. It provides high-level access to audio, keyboard, mouse, joystick, TrueType fonts, various image formats, sound mixing, MPEG-1 movies, and 3D hardware via OpenGL and a 2D video framebuffer. It is compatible with both .NET and Mono runtimes.
  
  http://freshmeat.net/projects/sdldotnet
• MfGames.Utility is a C# library that contains various functions and frameworks, such as an auditing and logging framework. It also implements a Mersenne Twister as a random number generator, an entropy framework, and collections that use the framework for selection. The library also contains many useful classes to simplify code, such as an abstract reference system inspired from the Unix file system, additional conversion classes, and timing or animation managers. This library requires no additional packages or libraries beyond those supplied in Mono or .NET 1.0.
  
  http://freshmeat.net/projects/mfgames-utility/
• Gentle.NET is a CLS-compliant, database independent object persistence framework. It has an extensive feature set, excellent performance, and reasonably complete docs. It features automatic SQL generation, object construction/caching/uniquing, validation, bindable list support, relation management, transactions, and much more. Oracle, PostgreSQL, MySQL, Firebird/InterBase, MS SQL Server (incl. CE), MS Access, SQLite, Sybase, and Sybase ASA are supported. It includes a NAnt build file as well as VS.NET project files for building under Windows. Mono 1.1.4 and higher is fully supported.
  
  http://sourceforge.net/projects/gopf
• NArg is a .NET command-line argument library. It supports Mono and the Microsoft .NET Frameworks 1.1 and 2.0.
  
  http://freshmeat.net/projects/narg/
• Classless.Hasher is a collection of standard hashing and checksum algorithms implemented within the .NET framework (Microsoft, Mono, etc.). It provides a uniform interface to easily use any of the algorithms contained within this library in other programs.
  
  http://freshmeat.net/projects/classlesshasher/
• NLog is a .NET logging library designed with simplicity and flexibility in mind. With NLog you can process diagnostic messages emitted from any .NET language, augment them with contextual information, format them according to your preference, and send them to one or more targets. The API (application programming interface) is similar to log4net, and the configuration is very simple. NLog uses a routing table while log4net uses a logger hierarchy with attachable ppenders. This makes NLog's configuration very easy to read and maintain.
  
  http://freshmeat.net/projects/nlog
• Npgsql is a .NET data provider for PostgreSQL. It allows .NET programs to connect to PostgreSQL 7.x and 8.x servers.
  
  http://freshmeat.net/projects/npgsql/
• BytesRoad.NetSuit Library
  Free and open source network library for .NET platform.
  http://www.freewarefiles.com/program_10_116_16862.html
• SDL.NET is a set of object-oriented CLS-compliant .NET bindings for the SDL gaming library. It provides high-level access to audio, keyboard, mouse, joystick, TrueType fonts, various image formats, sound mixing, MPEG-1 movies, and 3D hardware via OpenGL and a 2D video framebuffer. It is compatible with both .NET and Mono runtimes.
  
  http://freshmeat.net/projects/sdldotnet
• NeatUpload allows ASP.NET developers to stream uploaded files to disk and allows users to monitor upload progress. It works under Mono's XSP/mod_mono as well as Microsoft's ASP.NET implementation and features two custom controls. InputFile allows the user to select a file to upload and ProgressBar displays the upload progress either inline or in a popup. ProgressBar even allows users without JavaScript to see upload progress.
  
  http://freshmeat.net/projects/neatupload/
• .NET Framework 2.0 Software Development Kit (SDK)
  Includes tools, documentation and samples developers need to write, build, test, and deploy .NET Framework applications.
  http://www.freewarefiles.com/program_10_108_17938.html
• IronPython is an implementation of Python running on Microsoft .NET / Mono. It supports an interactive interpreter with fully dynamic compilation. It is well integrated with the rest of the framework and makes all .NET libraries easily available to Python programmers.
  http://freshmeat.net/projects/ironpython/
• SharpDevelop
  A free IDE for C# and VB.NET projects on Microsoft´s .NET platform.
  http://www.freewarefiles.com/program_10_108_15778.html
• NeatUpload allows ASP.NET developers to stream uploaded files to disk and allows users to monitor upload progress. It works under Mono's XSP/mod_mono as well as Microsoft's ASP.NET implementation and features two custom controls. InputFile allows the user to select a file to upload and ProgressBar displays the upload progress either inline or in a popup. ProgressBar even allows users without JavaScript to see upload progress.
  http://freshmeat.net/projects/neatupload/
• FreeTextBox
  The FreeTextBox control provides a WYSIWYG HTML editing environment for
  ASP.NET (Web Forms) Web pages. Users can edit text and ...
  http://www.sofotex.com/FreeTextBox-download_L18770.html