I'm trying to update Exchange 5.5 SP2 (running on NT4.0
SP5) to SP4 on a bridgehead server. I'm logged in with the Service Acct.

The error occurs after all the 'file copies' and after it
starts the System Attendant and Directory.
The error is:
"While attempting to start the MS Exchange Event Service,
the following error was encountered: The service did not
respond to the start or control request in a timely
fashion. MS Windows NT ID no: 0xc002041d.
I click OK, then I get the same error again and the
service pack install quits.

Previous to installing the update I did the following:
- admin /t nr (to stop the server monitors on my other
servers)
- stopped all Exchange, UPS, SNMP, and ArcServe backup
services.

Any suggestions greatly appreciated.
Lori