http://bugs.winehq.org/show_bug.cgi?id=12930
--- Comment #2 from Yolande Haneder yolande@haneder.biz 2008-05-23 13:12:40 --- Update on rc2:
Now you have just before the message that trusted storage failed to initialize a small grey message "starting installshield wizard". This message is immediately closing (no need to click on OK or anything) without crashing the main installation, this prompting the other error message. This is happening during the main installation, it looks like a second installation within the main installation.
I can't tell wether it's a progress or not, on Windows this message is never coming up.