I can't reproduce a problem on my Windows 8.1 VM, an actual Windows 8.1 machine, or on a clean Windows 8.1 VM.
However in testing the clean VM I did notice that there are some missing dependencies, which should be included in the Quest setup. Maybe these are out of date on your system or something - could you go to
http://www.microsoft.com/en-us/download ... x?id=30679 and install VSU_4\vcredist_x86.exe?