.NET Framework Versions

I'm trying to find out which versions of the .NET Framework come installed by default with each operating sy开发者_如何学Pythonstem. But a few Google searches reveal just a bunch of crap, with no real answers.

Does anybody know any sites that have this information? Preferably coming from Microsoft.

Thank you :)

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• .NET 1.1 is included with Windows Server 2003.
• .NET 2.0 is included with Windows Server 2003 R2, but not installed by default.
• .NET 3.0 is included with Windows Vista and Windows Server 2008.
• .NET 3.5 is included with Windows 7 and Windows Server 2008 R2.

Edit: Contrary to popular belief, Windows XP SP2 does not include the .NET Framework at all, as far as I'm aware. See the following links:

• Does windows XP SP2 include .net framework by default?
• Windows Update keeps reporting that Microsoft .NET Framework 2.0 Service Pack 2 Update is not installed
• What version of the .NET framework is installed on Windows XP, Vista, and 7?
• what .NET FRAMEWORK for XP SP2
• Is Windows XP SP2 required for .NET Framework 2.0?
• .NET Framework 2.0 (Wikipedia)
• Windows XP Service Pack 2 (Wikipedia)

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Note that Operation systems prior Windows Vista won't have any .NET Framework installed at all.