I manage a smal IT service company. I received a copy of 2003SBS from microsoft a few months ago. When attempting to install it in the lab, the 2K server (PDC) I was using it on as an update, halted at the system check. Seems that even though I removed a trust from AD sites and svcs, setup won't recognise it as gone. So it is just hanging there. This upgrade is due to the planned addition of remote desktop, as I am working on a roll-out of laptopsthat users need to be able to access their desktops from both within, and without the organisation. To this end, would it be best if 2003SBS is installed on the PDC, or on the ISA Proxy server? (Only two servers on this network). I am none to thrilled to have to tell our customers that in the upgrade, they will be having to replace all of the client licenses. If this is installed on the Proxy server, could I use the 2K PDC to service the existing clients? Perhaps running the proxy through the PDC? Thanks...JK