Buy Office 2007 Entourage OWA keeps losing conne

[thisis1407]

Several weeks ago we've got commenced going through an bothersome and
inexplicable issue the place Entourage customers would instantly be
disconnected from Exchange. Naturally, OWA also wouldn't get the job done, but MS
Outlook continued to effort fine.
Resulting from MAPi nevertheless working I am guessing this has a little something to complete IIS,
but there is certainly tiny to support this in the logs and what the result in is.
Only matter I can get is in the Programs log as follows :-
"
17:05:29 Faulting application inetinfo.exe,Office 2010 Pro Plus Key, model six.0.3790.1830,
faulting module TransportScan.dll, version six.0.1148.0, fault tackle
0x00002eb4
17:07:01 Reporting queued error: faulting application w3wp.exe, version
6.0.3790.1830, faulting module davex.dll,Windows 7 Code, version 6.five.7638.1, fault
tackle 0x0005dfcd
"
What we are staying advised is that IIS must be re-installed although
the method is not as straightforward as working the installer yet again. It
demands backing up Exchange,Office 2010 Pro Key, de-installing Exchange, re-installing
IIS, re-installing Exchange and restoring mailboxes.
I'm reluctant to proceed without having knowinginvestigating about any
troubles to our 90 Entourage/3 Outlook consumers and their electronic mail, calendars,
delegated calendaring, etc.
Does any individual have any working experience of a re-install and may advise about the
approach?
Server: Windows Enterprise Server 2003 SP2, Exchange 2003 SP.
Also runs Symantec Backup Exec 10.x,Office Professional 2007, McAfee AntiVirus,Buy Office 2007, McAfee
GroupShield.
Kind regards
Craig.