http://bugs.winehq.org/show_bug.cgi?id=14874
--- Comment #13 from Spydr4590 Andy4590@yahoo.com 2008-08-16 12:10:55 --- Okay I recreated the error that you posted at the start of this bug post.
DDERR_INVALIDPARAMS in file: D:\MM7Src\MM7\Code\Screen16.cpp at line number: 2320
The above error you will receive if you're running windows version 98 (Compatibility Mode), and under Might and Magic VII Setup have chosen software mode. Leave the windows version 98. If you change to Hardware Mode and try to run the game then this will work. You need to hit escape at the 3D0 Movie, after you make your character and the loading screen between the character or your game will crash because of the movies.