We just released InstallBuilder for Qt 5.0 This releases includes LZMA compression support that creates smaller installers. Startup speed was improved as was Windows Vista integration. We also include new actions and rules to check for processes, calculate free space, INI file manipulation , among others. Multiple bugfixes and a number of cosmetic improvements. You can give the new version a try at:

http://bitrock.com/download_installb..._download.html

We will also be attending Trolltech's DevDays in October, if you are around, come say hi

Cheers

Daniel