If you've ever worked with the BizTalk 2006 Enterprise Adapters (ie Oracle Database, etc) you might have run into the following error when import a binding file or msi:
Could not validate configuration of Primary Transport of Send Port 'portname' with SSO server.
Specify user name and password (Microsoft.BizTalk.ExplorerOM)
More information is available here: http://support.microsoft.com/kb/923733
There is a hotfix available but waiting to get the fix from Microsoft Support can consume valuable development time, so here is a dirty little workaround that I know works for the Oracle Database Adapter.
Extract a Binding File from the offended application(s).
Open the file in your favorite text editor and find the Send and/or Receive Port that is reference the Oracle Database Adapter.
Find the Configuration Property for Password and changed the masked password for the real plain text password.
This will fix your binding import issue until you can obtain the hotfix.