[Interest] qmake.exe -query gets stuck

[qt at supradigital.org]

Hello there,

[System Windows7 64bit]

I just tried to install Qt(32bit) for a less knowledgable person and
utterly failed. Installation went successfull. At the end the installer
offered to start QtCreator for us. We said sure and it did. However we
never saw Qt Creator. The task manager showed it running, along with the
child "qmake.exe -query". This qmake.exe turns out to be impossible to kill.

I also tried calling it manually and sure enough it got stuck forever.
Unkillable.

Any advice? We tried this with Qt 5.5.0 and 5.5.1. Same result.

    --Marenz