http://bugs.winehq.org/show_bug.cgi?id=24875
--- Comment #6 from Louis Lenders xerox_xerox2000@yahoo.co.uk 2010-10-24 10:42:13 CDT ---
Installing winetricks dotnet30 now to see how it fares. Probably not well by itself, if you have to send a patch.
The registry key itsself is created by dotnet30 install, but wine tries to replace it with Mono, so we need to fake that dotnet20 is installed.
The app uses WPF i could see from a quick crash (Presentation Framework sll missing), so for now dotnet30 is the only way to go as Mono doesn't implement this.
If you want to get it running also have a look at the tips and tricks at http://appdb.winehq.org/objectManager.php?sClass=version&iId=9828