The software for Microsoft Exchange Server 5.5 Standard Edition and Microsoft Exchange Server 5.5 Enterprise Edition is not compatible with Microsoft Windows 2000. You must install Exchange Server 5.5 Service Pack 3 or later in order for these programs to run under Windows 2000.

For more information about this software and to download Exchange Server 5.5 Service Pack 3 or later, see the Microsoft Exchange Server page at the Microsoft Web site. Web addresses can change, so you may be unable to connect to this Web site.

For a list of software supported by Windows 2000, see the Microsoft Windows 2000 Product Compatibility List at the Microsoft Web site.