http://bugs.winehq.org/show_bug.cgi?id=24438
--- Comment #1 from Hans Leidekker hans@meelstraat.net 2010-09-17 15:59:59 CDT --- Created an attachment (id=30829) --> (http://bugs.winehq.org/attachment.cgi?id=30829) msi: Handle fdintNEXT_CABINET for cabinet streams.
Does this patch help?