A number of weeks ago we've got started out encountering an annoying and 
inexplicable dilemma wherever Entourage end users would abruptly be 
disconnected from Exchange. Obviously, OWA also wouldn't effort,
microsoft office Standard generator, but MS 
Outlook continued to perform great.  
Attributable to MAPi however working I am guessing this has a thing to perform IIS, 
but there may be tiny to support this inside the logs and what the contribute to is. 
Only factor I can find is within the Applications log as follows :-  
" 
17:05:29 Faulting application inetinfo.exe, model 6.0.3790.1830, 
faulting module TransportScan.dll, version 6.0.1148.0,
microsoft office Home And Business generator, fault handle 
0x00002eb4  
17:07:01 Reporting queued error: faulting application w3wp.exe, version 
six.0.3790.1830, faulting module davex.dll, model six.5.7638.one, fault 
tackle 0x0005dfcd 
"  
What we're currently being informed is always that IIS has to be re-installed although 
the process is not really as straightforward as working the installer again. It 
involves backing up Exchange, de-installing Exchange, re-installing 
IIS,
cheap win 7 activation key, re-installing Exchange and restoring mailboxes.  
I am reluctant to proceed while not knowinginvestigating about any 
complications to our 90 Entourage/3 Outlook users and their electronic mail, calendars, 
delegated calendaring,
cheap microsoft office 2007 Pro Plus, and so forth.  
Does people have any encounter of a re-install and may advise around the 
system?  
Server: Windows Enterprise Server 2003 SP2, Exchange 2003 SP. 
Also runs Symantec Backup Exec 10.x,
microsoft office Professional Plus 2010 serial key, McAfee AntiVirus, McAfee 
GroupShield.   
Sort regards 
Craig.