On your computer go to
start> control panel> uninstall quick time
create a folder o your desktop than install quick time latest version again in this folder
create a new text document in this folder give a name the text document fix.bat
open the text document and paste "QuickTimeInstaller.exe /extract" on it and save text document .
than double click on fix.bat it will extract to the quick time instalations files
install the apple aplications support programs in this folder.
finally click the quick time.exe on your desktop it will work