Hi,
On my windows 7 64 system, ccleaner v2.26.1050 is not cleaning the quicktime cache, even though that option IS checked.
I can tell it's not because
a) I can see that big quicktime movies are not being downloaded
I can observe the cache using explorer and see the files are not being deleted.
So, on Windows 7 64 the cache is in the following location:
C:\Users\*YourNameGoesHere*\AppData\LocalLow\Apple Computer\QuickTime\downloads\...
I hope this helps,
Thank you,
J