We just installed SP1 on our Exchange 2010 servers, and after that the MSExchangeMailboxAssistant
s service will not start. It claims:
The Microsoft Exchange Mailbox Assistants service failed to start due to the following error: The process cannot access the file because it is being used by another process.
Unfortunately I am very sure the file (MSExchangeMailboxAssistan
ts.exe) is not in use (verified with Process Explorer).
I also tried to check what is causing the service to fail with Process Monitor, but it doesn't seem to do anything at all. =/
I know this can be due to a port being in use (re: similar problem with IIS http://support.microsoft.com/kb/890015
), but the service uses Dynamic RPC !?
Rebooting the server does not help.
Thanks for any help :)