Ta Gert tried that and this is the result, appears there is nofile, I had a look in home/ lance/ but winetricks cache isn't there "~$ sh winetricks dotnet20 Setting Windows version to win2k Executing wine regedit /home/lance/.wine/drive_c/winetrickstmp/set-winver.reg Executing cp -f /home/lance/.winetrickscache/dotnet20/l_intl.nls /home/lance/.wine/drive_c/windows/system32/ sha1sum mismatch! Rename /home/lance/.winetrickscache/dotnet20/dotnetfx.exe and try again. lance@lance-machine:~$ mv /home/lance/.winetrickscache/dotnet20/dotnetfx.exe mv: missing destination file operand after `/home/lance/.winetrickscache/dotnet20/dotnetfx.exe'" cheers