Windows/DOS Command line for Apple Software Update

I have a lab of Mac's and PC's all running iTunes/Quicktime. Is there a windows/DOS command line option to running Apple Software Update on Windows? I dont want to have my systems automatically download updates until after I have had a chance to test them first. At the same time though, I down want to have to visit each system(even with VNC) and install the updates by hand either as I have a way to blast a command at the PC's all at once to do the job.

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MacBook Pro Mac OS X (10.4.10) Windows XP Pro