Solved! It is caused since this commit: http://source.winehq.org/git/wine.git/commit/f1e59351ded497a7f9cd7c27c0fdfcf6db3765c2 But I've read that is a winetricks problem, and the issue was solved in the svn version. Code: svn checkout http://winetricks.googlecode.com/svn/trunk/ winetricks-read-only Making a new profile and using svn winetricks solved the problem, allowing dotnet20 installation ends successful.
