It is difficult to say what caused your issue. However MSExchangeES is
the Event Service. It is a non-essential service, you do not need this
running unless you are doing server side scripting. The ES depends on the
Information Store. So the problem was likely with that service. Was a
user.dmp file created at the time. If so, you can send it to PSS for
analysis and we can tell you what caused the problem. Please do not send it
to me as a Debug engineer will need to analyze it and an incident would need
to be opened.
Melissa Travers, MCSE
Microsoft Exchange Support
Please do not send email directly to this alias. This alias is for newsgroup
This posting is provided "AS IS" with no warranties, and confers no rights.
> Everything working all okay on Mail Cluster with Exchange
> 5.5 sp4 on Windows 2000 Cluster
> Sybari Antigen 7.0 AV software
> Then out of the blue, no one could connect - can only see
> the error :
> Event ID 7
> Source MSExchangeES
> An unexpected error [0x80040115] occurred in maintence
> in the Event log - swapped the node on the cluster -
> everthing starts all okay - users back in okay
> no other errors are recorded
> The only Technet article with reference to this error
> refers to doing restores - hence no applicable
> From scanning the newsgroups - no definite answers to why
> this happens - Why did this occur ?
> - how can I prevent it happening again ?