Openfire Service stopping

I’m noticing very often that Openfire’s service shuts down and never recovers despite service being set to recover after 1 minute.

Openfire 3.6.4 with little number of local users

DB: MySQL5.5.8

OS: Windows Server 2003

Error which may be related:

Event Type: Error
Event Source: Application Error
Event Category: (100)
Event ID: 1000
Date: 15/02/2011
Time: 02:27:05
User: N/A
Faulting application jaucheck.exe, version, faulting module jaucheck.exe, version, fault address 0x0000c940.

I have disabled Java Updater (jaucheck.exe) after posting this question and so far service has not hanged.