On adding a project to Source Control using Vault as the provider, under 64-bit Vista the crash is immediate and fatal (C00000005).

I think it's the call being made from VFP to the Vault integration library that is the issue. I have seen references to COM-related crashes in other products (e.g., ActiveReports, and the DataDynamics data object) under Vista 64, but don't know whether they are releated (because, of course, the documentation for what VFP expects on the other end is not available -- I do know from talking with a developer at a 3rd-party vendor that it does things a little bit differently than the scc api interface standard).

Hank