This article was previously published under Q290786
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After you restore an Exchange 2000 database, you must perform a full backup of that database before an incremental backup can be performed. If you do not perform a full backup on that database before an incremental backup is performed, the incremental backup may cause data loss because of a limitation in the database storage engine.
To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
Microsoft has confirmed that this is a problem in Microsoft Exchange 2000 Server.
This problem was first corrected in Microsoft Exchange 2000 Server Service Pack 1.