Then I agree...Your methods are more secure. The problem is though that none of the options you listed...

quote:

Microsoft Installer technology via GPO
Task Scheduler from an admin workstation or scripts scheduled via Task Scheduler
scripts that processes install requests and is run via Task Scheduler or as a service (e.g. KSMS)
remote execution via WMI or other tools
Will work on NT4 and above without installing something on the client machines.