Só complementando, uma situação que tivemos com um cliente.
O .Net Framework 3.0 não é compatível com o Windows 2000 Server, não deixa nem instalar.
Para consultar os requisitos mínimos do .Net Framework 3.0 e por consequência os recursos do WF consulte o link: http://www.microsoft.com/downloads/details.aspx?FamilyID=10CC340B-F857-4A14-83F5-25634C3BF043&displaylang=en
System Requirements
- 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.
Att.
Rafael Leonhardt
http://rafaelgaucho.blogspot.com