I now suceeded in converting my solution just fine by using a second installation on my backup dev system running XP SP2 (my main dev machine runs Vista Ultimate). BUT: Once I check out the updated solution on the first machine and try to open the solution in VS 2008, I get the same System.Runtime.InteropServices.COMException as above. On my XP machine I can open the converted solution in VS 2008 without any problems and do everything I like with it.
Two possible explanations:
- On my main machine I had VS 2008 Beta2 installed before, but not on the other one. I completely deinstalled it before I installed RTM, but maybe there are some left-overs (especially as the deinstall crashed at some point) ?
- A Vista problem.
Any ideas ?