install_qttask=false disables the Quicktime task icon. I'm still trying to find out how to automatically set no auto update and disable hotpicks.
I just downloaded the full installer for version 6.4 and it no longer seems to use Quicktime.qtp in the All Users profile.
Also, if I've noticed that if you try to install QuickTime on a system that doesnt have GFX drivers (or at least on my VMWare Win2K test computer - without the vmware tools installed) the QuickTimePluginInstall fails. Its suppose to run right as the last thing during the qt installation. With gfx drivers installed, it works like it should.
Follow this link for latest version of Quicktime on Windows 7:
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