QT version on Windows

[sims]

In order to use QTVersion on Windows it seems that Rev loads QuickTime.

Once it is loaded, you cannot set dontUseQT to true.

I want to check for QT 7 on a Windows machine and if it is available use
QT 7 to play some video - if it is not available, play a wmv version 
of the video instead.

But if the user has QuickTime available BUT not QT 7 and you check 
for QT version, you are stuck with
QT being loaded!

Anyone know how to check for the QuickTime version on a Windows machine
without using QTVersion?

ciao,
sims