How to force an application to use .NET 3.5 or above?

Question

Our application is built with VS 2008, uses Linq and has Target Framework set to .NET Framework3.5.

It works OK when only .NET 3.5 or 4 is installed on the machine.<

Answer 1

The .NET Framework version 3.0 and 3.5 use version 2.0.50727 of the CLR.