After you install ISA Server 2004, ISA Server 2004 restarts the IISAdmin service. However, the services that depend on the IISAdmin service do not restart. Therefore, the following conditions occur:
- Exchange is unavailable.
- Any Web sites that are hosted on the ISA Server 2004-based computer stop.
- The Network News Transport Protocol (NNTP) service stops.
- If you are running ISA Server 2004 on a Microsoft Windows Small Business Server 2003-based computer, you cannot successfully use the Configure E-mail and Internet Connection Wizard to configure your Internet connection.
The following services stop after the Setup program restarts the IISAdmin service and must be restarted:
- Microsoft Exchange IMAP4
- Microsoft Exchange Information Store
- Microsoft Exchange MTA Stacks
- Microsoft Exchange POP3
- Microsoft Exchange Routing Engine
- NNTP
- World Wide Web Publishing Service
- Simple Mail Transfer Protocol (SMTP)