http://bugs.winehq.org/show_bug.cgi?id=17662
--- Comment #9 from Austin English austinenglish@gmail.com 2009-05-11 05:46:18 --- (In reply to comment #8)
That means that you had an old ~/.wine prefix, without mountmgr.sys service in the regsitry. The question is why running winecfg doesn't force the prefix update while running notepad does.
He had wineboot timeout when running winecfg:
#winecfg err:process:__wine_kernel_init boot event wait timed out