What do you mean by accessing multiple profiles?
Do you want to log into multiple profiles using code (only one Outlook
session can run at a time, you have to log off to be able to log into a new
profile), or do you want to read profile information from the registry?
There is a profile API available but you can only work with it using
Extended MAPI (C++ or Delphi only) or from ProfMan, a library that comes
with Redemption (
www.dimastr.com/redemption).