I am using a code to login with a domain user account. That works perfectly fine when the user is logged on the computer with the primary domain:
lcCurrentUserDomain = GETENV("UserDomain")

However some clients log onto Windows using a secondary domain (something to do with the exchange server), so the program cannot authenticate the user when I specify lcCurrentUserDomain. The authentication must be done on another domain.

I wonder if there is a way to get a list of domains that the program could go through?