Can you mix .NET framework Versions in a solution?

Question

Our codebase where I work is .NET 2.0. For our new assembly/DLLs/web applications I would love to take advantage of what 3.5 has to offer.

Can one mix .NET frameworks(pe

Answer 1

This should not be an issue. .NET 2.0 RTM through .NET 3.5 SP2 all use the exact same version of the CLR. They only differ by the number of assemblies that are included. The assembly format is the same. Of course, if you do take advantage of an assembly that's only included with .NET 3.5, you must make sure that 3.5 is actually installed on the target machine. You'll find out quickly if it isn't.

3.5 should already be on the machine if it has Windows Update enabled. If not, it takes a dozen or so minutes to get it on there.