With the frequent security bugs in Apple's QuickTime you would think they would make it network distribution friendly, but they do not. Trying to push out version 7.4.1 to plug the latest security gap I was confronted with a failing install. Turns out I had to add two new msiexec switches to get the job done so that the normal .msi didn't look for the Autoupdate.msi. The command ended up being the following after some Orca manipulation of the original .msi.

msiexec /i QuickTime7_4.msi ALLUSERS=1 DESKTOP_SHORTCUTS=0 ASUWINSTALLED=0 SCHEDULE_ASUW=0 /qn