Hi, When attempting to logon to OWA, it fails and I get the following error in the system log: --------------------------- Event Type:WarningEvent Source:W3SVCEvent Category:NoneEvent ID:1011Date:7/27/2006Time:9:48:55 PMUser:N/AComputer:UCMASTERDescription:A process serving application pool 'ExchangeApplicationPool' suffered a fatal communication error with the World Wide Web Publishing Service. The process id was '4780'. The data field contains the error number. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.Data:0000: 6d 00 07 80 m.. ----------------------------------- Any ideas? Thanks Tom

Hi, i have the exact same problem. This started to happend after installing SP2 on the exchange 2003 server.I Have tried with a hotfix from microsoft, this didn't help. I've tried changing the setting in the virtual directories e.t.c.I also have activesync installed on the server, and everything worked smoothly until upgrading to SP2... Anyone got a clue?