System Requirements : .NET Framework 3.0

Supported Operating Systems
: Longhorn (Windows Code Name) ; Windows Server 2003 Service Pack 1; Windows Vista; Windows XP Service Pack 2


For customers that already have the .NET Framework 2.0 installed, this .NET Framework 3.0 redistributable package installs only the new Windows Vista components. This ensures that any .NET Framework 2.0-based applications work seamlessly when the .NET Framework 3.0 is installed, with no application migration or updates of any kind required.