VW: Integrated Windows Authentication in IIS

Assuming a VisualWorks 7 image runs as some kind of service (for example a
Web Service) has anyone implemented impersonation similar to "Integrated
Windows Authentication" in IIS (formerly called NTLM)? Is it at all
possible?

Reasons for doing this would be 1) enabling integrated authentication by the
domain and 2) use individual Oracle accounts from the service authenticated
by external passwords.

Thanks, Runar