Mitch Denny pinged me last Friday to say that he has managed to work out how to get Team Build 2005 building .NET 3.5 applications. Mitch has posted this now on the TFS Now blog. Well worth a look if this is something you are needing to do. I’m keen to have a look at this myself for use on some of the .NET 3.5 applications I’m working on for the Windows Server 2008 Developer Essentials course.