A. MSW doesn't automatically update OABs. You need to perform the following steps to regenerate an OAB manually:

  1. Wait until the target site for the move (i.e., the site you moved your server into) has completed a full replication cycle.
  2. Find the DS Site Configuration object, and open its Properties dialog box.
  3. At the Offline Address Book tab, select the server that you want to generate an OAB.
  4. Click Generate All.

This process completely regenerates an OAB, adds it as a container object if it isn't present, and replicates it throughout the organization.