I have an external server with VSS for use by my distributed offices. We have a VSS db installed on it and we want to hook Interdev up to this VSS db for source control. When I try to access it through Interdev I believe it does so in the same way as when I try to map a drive in windows explorer. In anycase it appears to use a dynamic port from my net capture results, but when I try to create a hole through the firewall to map a drive it work when I'm sitting at the ISA server, but not for the rest of the computers on my network. Anybody have ideas on the correct way to set up this hole to allow access to my VSS server? thanks