Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool has determined that you have a signature discrepancy between your Exchange database (.edb) file and its corresponding Exchange streaming database (.stm) file.

Each database in Exchange 2000 Server and Exchange Server 2003 is made up of two files: the .edb MAPI database file and the .stm streaming database file. Matched pairs of these files share a common database signature. If the database signature does not match, the files are not matched.

You should treat the .edb and .stm files as if they are a single file. They should always be moved or copied together.

To correct this error

For more information about how to repair an Exchange database, see Microsoft Knowledge Base article 812357, "How to maintain your Exchange database after you repair by using the Eseutil /p tool in Exchange Server 5.5, in Exchange 2000 Server, and in Exchange Server 2003" (