Eventlog Type: Security
Eventlog Source: Security
Event ID: 609
Link to KB Entry
Short Description:
A user right was removed.
The 0xfffffa84 error translates to JET_errIndexNotFound. This issue may occur during index cleanup of an Exchange 2000 database after you apply a new Microsoft Windows 2000 service pack.
RESOLUTIONTo resolve this issue:
1. Restore the server from a backup file.A user right was removed.