Additional Notes About Microsoft Exchange Server WARNING: You must have previously installed Microsoft Exchange Server 5.5 Service Pack 3 in order to apply this patch. This document contains information not available in the Microsoft Exchange Server documentation, as well as information on changes that occurred after publication. If you enlarge the Write window to its maximum size, this document will be easier to read. To do so, click the Maximize button in the upper-right corner of the window. To move through the document, press PAGE UP or PAGE DOWN, or click the scroll bar along the right side of the Write window. To print the document, choose Print from the File menu. For Help on using Write, press F1. The Store fix previously located in this directory has been replaced by an updated version that is available on the Microsoft Download Center at: http://www.microsoft.com/downloads/release.asp?ReleaseID=17142 List of Bugs Fixed in Microsoft Exchange Server Post SP3 update for the Exchange Server Information Store can be found in Q248838. NOTE: When you start this version of the information store, the information store databases are automatically upgraded to a new format. After the databases have been upgraded, you can restore an earlier version of the Store.exe file on the server, but only if it is version 5.5.2651.32 or later. If you restore a Store.exe file earlier than version 5.5.2651.32 after the database has been upgraded, you are no longer able to start the information store. For additional information, reference the article number below to view the article in the Microsoft Knowledge Base: Q244976 XADM: Event ID 1197 and 1005 When Starting the Information Store