Windows 2000 Upgrade from network drive?

Is there any way to configure a Windows 2000 Pro to do Windows Upgrade from a network drive?

There are maybe 5-10 critical upgrades / security patches every month, I don’t want to do this on 50 computes one by one.

Also Internet access is another issue, we don’t open the permission for every user, so it become a pain when we need to do Windows Upgrade through windowsupdate.microsoft.com, there are is much to do just to connect a computer to Internet temporarily.