You must suspend normal Exchange, IIS SMTP, or Domino operations before you stop the policy engine hub service. There are several ways to do this for Exchange 2003 and IIS SMTP, but we recommend that you stop Internet Information Services (IIS). This is because you cannot upgrade the email server agent .DLL file while IIS is running. For Exchange 2007 and 2010 we recommend that you stop the Microsoft Exchange Transport service.
Stop the CA DataMinder Policy Engine Hub service. You can now perform any necessary maintenance or upgrades on the host machine.
