http://bugs.winehq.org/show_bug.cgi?id=26176
--- Comment #7 from Ilan Tayari ilan@cogniview.com 2011-03-08 10:27:48 CST --- Just an update for anyone who might end up here with similar problems:
We've resorted to DLL-based custom actions, and took away all JScript actions. This has been a relatively easy fix, which should work around a couple other JScript-related problems.