>This may be slightly off the subject, but the foxtools that comes with VFP 6.0 contains three winsock functions I believe: _WSockStartup, _WSockGetHostByAddr, and _WSockCleanup. Unfortunately, I've been unable to locate any documentation on these. Do you know anything about them?

Nope. But GetHostByAddr is the same as wwIPStuff::GetDomainFromIP()... The above is a WinSock function wrapped by FoxTools. The startup and stop are required in order to call this.