There is however a crucial difference between your using of the .NET and qwertymn's You are using winetricks to install dotnet 2.0. I am directly installing it in a fresh prefix (it is part of the installer), so you are using Win2000 and I WinXp as version. Ruelle: In which Wine Version (XP or Win2000) are you installing the .NET? Are you installing it directly or through the winetricks?