With each QuickTime release, the classID for the registry check and uninstall command changes. Note that because Apple Application Support is shared between iTunes and QuickTime, this package expects its MSI in %SOFTWARE%\Apple\AppleApplicationSupport-%PKG_VERSION%.msi. If you're not bothering with iTunes, this untested modification of a current Apple Application Support package might work with 2.3.6 as shipped in QuickTime 7.7.8. Right-click each MSI and check the Details tab to find the internal version, then update %QT_INTERNAL_VER% and your Apple Application Support package, as appropriate. To deploy a new QuickTime release, start by updating %PKG_VERSION%, then create a new directory %SOFTWARE\Apple\QuickTime-%PKG_VERSION% and extract the new installer there. This means it's a good idea to keep the old MSIs around. To avoid the tedious process of looking up new ClassIDs / GUIDs each time you deploy a new QuickTime, this package is written to remove by referencing the original MSI. If you also distribute iTunes, then you only care about QuickTime.msi if you don't distribute iTunes, you also need AppleApplicationSupport.msi. You'll end up with three MSIs and one EXE. In that directory, run QuickTimeInstaller.exe /extract (or unpack it with an appropriate file archiver).
To use this definition, download QuickTime and place it into %SOFTWARE%\Apple\QuickTime-7.7.8. You should generally use the one provided in the iTunes article, but if you're not deploying iTunes, a package for 2.3.6 is also included here for your convenience.
DOWNLOAD APPLE QUICKTIME 7.7 INSTALL
If you're going to install both, they should depend on a separate package instead of both trying to install & remove it therefore, this definition requires a separate Apple Application Support package. QuickTime requires Apple Application Support. Current iTunes releases don't seem to install correctly from the fortunately, unpacking it to get MSIs a'la iTunes is simple.
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