You are better off using WSUS rather than GPO's if you have unreliable networks. WSUS uses BITS technology to transfer the update in the background. Group Policy does not use BITS and thus requires even more reliable bandwidth. BITS can be used on something as slow as dialup. It won't do the install until the entire package is on the machine and in the c:\windows\SoftwareDistribution folder. At Princeton we will be using WSUS to distribute Vista SP1 to around 1200 machines and XP SP3 to around 8000 XP machines. It will be staged over various WSUS groups. Phil Immordino Princeton University OIT Support Services Software Support - Manager ________________________________ From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of Ray Lewis Sent: Monday, June 02, 2008 4:01 PM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] XP Service Pack 3 Deployment Hello all... I'm going to be using Software Update Services to deploy XP Service Pack 3 to my clients but as our SUS server is based centrally, this can put a strain on the sites with unreliable networks. For these instances, I was hoping to use Group Policy for deployment but I can't find an .msi package for SP3 and I've not deployed an SP using this method before - any tips and ideas where I can get my hands on the package? Thanks in advance Ray