Ed. Note: This is a rather clever way of defeating the dreaded QuickTime registration dialog. However it does require access to the package before deployment. It also is a good example of some of the things that pre and post-install scripts do within packages.
Here at my University I deploy the QuickTime updates not via SoftwareUpdate but with rsync, cron, and the QuickTime.pkg. You can edit the preflight script inside the package where you find the following text.
"# Marketing (aka Amy Fazio) sez we don't need to bring up the registration dialog anymore # but let's just comment it out for now in case they change their minds. - duano! 3/16/04 # ... see, QT BRB did change their minds on this. Putting it back until Gibson - duano! 3/17/04 # Putting it back in again for Legal reasons (QT5Pro users need to know they're gonna lose functionality)."
Delete the dialog crap underneath and there you go.
tbone
by 
While that will work, it’s a pain to do that to all of your client machines if
your automated install system doesn’t provide for running scripts, just
installing pkgs.
Also note that setenv is a tcsh command and not present in the bash shell,
which would use export.
So killing it in the pkg itself protects you regardless of shell.
—
Changing the world, one server at a time.
Joel Rennich
http://www.afp548.com