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The .NET Framework (pronounced dot net) is a software framework that runs primarily on Microsoft Windows. It includes a large library and supports several programming languages which allows language interoperability (each language can use code written in other languages). The .NET library is available to all the programming languages that .NET supports. Programs written for the .NET Framework execute in a software environment (as contrasted to hardware environment), known as the Common Language Runtime (CLR), an application virtual machine that provides important services such as security, memory management, and exception handling. The class library and the CLR together constitute the .NET Framework.
The .NET Framework's Base Class Library provides user interface, data access, database connectivity, cryptography, web application development, numeric algorithms, and network communications. Programmers produce software by combining their own source code with the .NET Framework and other libraries. The .NET Framework is intended to be used by most new applications created for the Windows platform. Microsoft also produces a popular integrated development environment largely for .NET software called Visual Studio.
You might need the upto date .net Framework to run some of the softwares on your Windows PC. You can download it here. Some of them are available by Default in windows, and hence you need not download that version and the previous version before that.
See this table for reference:
| Version | Version Number | Release Date | Visual Studio | Default in Windows |
|---|---|---|---|---|
| 1.0 | 1.0.3705.0 | 2002-02-13 | Visual Studio .NET | Windows XP Tablet and Media Center Editions |
| 1.1 | 1.1.4322.573 | 2003-04-24 | Visual Studio .NET 2003 | Windows Server 2003 |
| 2.0 | 2.0.50727.42 | 2005-11-07 | Visual Studio 2005 | Windows Server 2003 R2 |
| 3.0 | 3.0.4506.30 | 2006-11-06 | Windows Vista, Windows Server 2008 | |
| 3.5 | 3.5.21022.8 | 2007-11-19 | Visual Studio 2008 | Windows 7, Windows Server 2008 R2 |
| 4.0 | 4.0.30319.1 | 2010-04-12 | Visual Studio 2010 |
System Requirements for all versions
Download all versions Here
