Sorry for the mistake in the explanation. The problem does not depend on UI, it depends only on REINSTALL & REINSTALLMODE
I have to use the following command line to get my update installed: msiexec /passive /update Patch.msp REINSTALL=ALL REINSTALLMODE=omus Best regards, Ilya Slobodin ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users