After the installation of Exchange 2007 SP1 rollup 4, the Microsoft Exchange Service Host service and the Microsoft Exchange File Distribution service may fail to start.
The following events will be present in your EventLog (System):
Posts under ‘Event ID’
Event ID 7009: Timeout (30000 milliseconds) waiting for the Microsoft Exchange Service Host service to connect
Event 9871: There is an online maintenance overlap for database X
On my Exchange 2007 server, I ran TSM as backup client. TSM was scheduled to backup every night at 11 pm., In the mean while, I had scheduled the online maintenance in Exchange 2007 daily from 0am to 7am.
The following error occured every day in my event viewer
Event 9874: Unexpected error 0×80040109 occurred in “EcProcessVirusScanQueueItem”
If you run Exchange 2007 SP1 with an antivirus program like Trend Micro ScanMail 8.0, the following event may occur in your eventlog:
Event Type: Warning
Event Source: MSExchangeIS
Event Category: Virus Scanning
Event ID: 9874
Date: 8/4/2008
Time: 8:34:47 AM
User: N/A
Computer: %
Description:
Unexpected error 0×80040109 occurred in “EcProcessVirusScanQueueItem” during virus scanning. Mailbox Database: %/cn=Microsoft Private MDB
The kerberos client received a KRB_AP_ERR_MODIFIED error
Due to some reconfiguration, I turned off a domain controller. Everything seemed to be working fine, until a few people complained about authentication errors on a Java-environment. Because I wanted to fix this problem quickly, I edited my DNS-record in Active Directory: I pointed my turned-off server (DC2) to the IP-address of a running DC (DC1). This seemed to be working, until a few people faced an error on the logon script: “Logon failure: the target account name is incorrect“.
Unable to open shim database version registry key – v2.0.50727.00000
When running a Windows 2003 server with .NET Framework 2 installed, you might find the following error in the event log: