I added to rollback my dll too, the problem is: if I call Rollback directly nothing happens, if I say 'throw new InstallException("Canceld by user");' it rolls back nicely but before that, a general error MessageBox is shown...
Thx for the response, it makes total sens... I hope I can make this somehow work :^), this tool will be used to trak down bugs by gathering CSS data... Regards, Mogyi