25 Most Active Open Source Projects at Microsofts CodePlex

VMukti is a Web2.0, distributed, peer-to-peer, grid computing, unified communications SAAS platform for Web, phone, and IM rich media collaboration and conference. This Multipoint VOIP, VVOIP Video

This project contains Engine samples released with Microsoft SQL Server products.

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The Patterns & Practices Enterprise Library is a library of application blocks designed to assist developers with common enterprise development challenges. Application blocks are a type of guidance,

BlogEngine.NET is a full featured blog engine targeted at .NET developers. It is light weight and very simple to modify and extend.

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The Smart Client Software Factory is a guidance offering that provides comprehensive architecture guidance to help customers build Composite Smart Clients using the Microsoft platform (WinForms

NMVP is a framework for creating Composite MVP Architectures. MVP is an achronym for Model-View-Presenter.The NMVP Framework aims at being a customizable yet productive Model-View-Presenter framework.

This project contains Data Programming samples released with Microsoft SQL Server products.

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The Web Service Software Factory (also known as the Service Factory) is an integrated collection of tools, patterns, source code and prescriptive guidance. It is designed to help you quickly

The Web Client Software Factory is a guidance offering from Microsoft patterns & practices, to assist developers and architects with the design, development and deployment of Line of Business Web app

The Fast Lightweight Expression Evaluator is a .NET expression parser and evaluator that uses a custom compiler and lightweight codegen to compile expressions to IL and emit them to a dynamic method.

This project contains Integration Services samples released with Microsoft SQL Server products.

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DocProject drives the Sandcastle help generation tools using the power of Visual Studio 2005/2008 and MSBuild. Choose from various project templates that build compiled help 1.x or 2.x for all p

SharpMap is an easy-to-use map rendering and display engine, including AJAX-powered ASP.Net UserControl and a WinForm 2.0 control. You supply it with GIS data for use in Web and desktop applicatio

VFPX is a Visual FoxPro Community effort to create open source add-ons for Visual FoxPro 9.0. The code, classes, and libraries made available here will complement Microsofts continuing efforts to imp

This project contains Analysis Services samples released with Microsoft SQL Server products.

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The goal of this project is to create a tool to synchronize relevant metadata added to images stored on Flickr with the original versions of those images stored locally on your hard dr

The AJAX Control Toolkit is a collection of samples and components which make it easier than ever to build and consume rich client-side controls and extenders built on the Microsoft AJA

This project contains Reporting Services samples released with Microsoft SQL Server products.

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EntLib Contrib is a community developed library of extensions to the patterns & practices Enterprise Library.

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The Farseer Physics Engine is an easy to use 2D physics engine designed specifically for Microsofts XNA platform. The Farseer Physics Engine focuses on simplicity, useful features, and enab

This project is a completely open source (Public Domain) collection of useful .NET classes and utilities.

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PowerShell Community Extensions (PSCX) is aimed at providing a widely useful set of additional cmdlets, providers, aliases, filters, functions and scripts for Windows PowerShell that members o

Filter.NET is a framework designed to expose the ISAPI Filters API to .NET while maintaining the power, flexibility and efficiency of the IIS platform.

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SharpZebra is a C# library that simplifies the process of printing to Zebra printers. We hope that this library abstracts enough of the EPL2 language needed to communicate with the Zebra branded

ShizHost is a little Windows C# .net console application which updates your PCs hosts file with known bad hosts. This allows your PC to block these bad hosts and makes them unreachable while you