ExBulkAdmin

This is an AD and Exchange bulk administration tool for AD or Exchange administrator to administer bulk Active Directory users and Exchange Mailboxes, you can use it to check bulk users, create bulk users, reset bulk users' passwords, enable or disable bulk users, set bulk users' properties, check bulk groups, add bulk users to group or remove bulk users from group, enable bulk mailboxes, disable bulk mailboxes, expand bulk mailboxes, create bulk mail contacts and remove bulk mail contacts. Hope it is useful for you.

Requirements:

.NET Framework 4.0