Thanks Bob,

that's a bit of a downer. My old project is still in development and is a very touchy subject right now between me and my client so I don't want to have any excuse to break it at the moment and don't have the time to spend on doing any conversion. I guess I'll have to stick with 3.6 for both projects for now.

>Hi Frank,
>
>I am not sure if it is possible to do what you ask, but why don't you just convert your 3.6 projects to 4.0 anyway. It is not that difficult and then you wouldn't need two versions of VS as well.
>
>Bob
>>Hi,
>>
>>Is it possible to maintain MM.Net 3.6 projects and 4.0 projects on the same computer?