http://bugs.winehq.org/show_bug.cgi?id=8936
--- Comment #26 from Konstantin Svist fry.kun@gmail.com 2007-12-23 17:55:45 --- (In reply to comment #25)
It seems so, it supports strings of max 200 chars at the moment, have a look in libs/wine/debug.c. (I would not use it, though.)
I don't see any 200-char limitation there, where do you see it?