@Matthias: There is now support for automatic generation of Qt compressed help files, but doxygen 1.5.8 or later is needed. Could you please make sure that the dartclient which is creating the 3M installer has an up-to-date doxygen installed?
[SVN revision 20209]
COMP (#2977): Needed to install the event filter QmitkHelpHandler inside the WorkbenchAdvisor, where qApp is definitely not null. Otherwise, the program might crash during startup.