Searching for users across multiple Active Directory domains

Question

I\'m using the System.DirectoryServices.AccountManagement to provide user lookup functionality.

The business has several region specific AD domains: AMR, EUR, JPN et

Answer 1

Queries which have initial wildcards (*Bloggs*) will be slow unless you have a tuple index on the attribute being queries. None of the attributes in AD have this set by default. Better to not do initial wildcards.