| Event Id | 173 |
| Source | ESE97 |
| Description | MSExchangeIS ((298)) The database engine is initiating index cleanup of database c:\exchsrvr\mdbdata\priv.edb as a result of an NT version upgrade to 4.0.1381 SP4. |
| Event Information | Refer following Microsoft article for more information. |
| Reference Links | Windows NT Version Change May Cause Exchange DB Indexes to be Rebuilt |
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