http://bugs.winehq.org/show_bug.cgi?id=8287
--- Comment #25 from Danila Sentiabov dsent.zen@gmail.com 2009-05-13 05:09:30 --- (In reply to comment #24)
If IrfanView is started with the /one option (force "only one instance") then the skins can be used.
I got the information from this page: http://www.wine-reviews.net/wine-reviews/wine/irfanview-423-on-linux-with-wi...
Nice workaround, thanks. Posted a comment to AppDB.