When you try to start the Exchange system attendant, it fails. When looking at the application log, we can see system attendant starting events.
Among those events you see:
Metabase Update failed to properly initialize its context. It will retry initialization every 60 seconds until succeeds or shutdown is requested.
One of the System Attendant's task is blocked.
Function: ScStartVM Required
The system attendant has many tasks. One of them is the metabase update which replicates information from the Active Directory to the IIS metabase.
Exchange 2003 now uses the IWAM account and checks its configuration when Metabase Update initializes.
If this account is badly configured, the system attendant cannot start.
If your server is a member running Windows 2003 please refer to the kb article:"822575 Metabase Update Service Stops After You Demote an Exchange Server 2003"
If your server is a Windows 2000 member or Windows 2000 Domain controller or a Windows 2003 domain controller
you can verify the IWAM account configuration. Here is how to proceed:
1- Check the account configured in the metabase
Open a command prompt
Go to c:\inetpub\adminscript
Run “cscript adsutil.vbs get w3svc/wamusername”
2- Verify this account exists either in the local SAM if it is a member or in the Active Directory if it is a domain controller
3- If the account does not exist, create it and set its password. Make sure to check "The password never expires"
4- Backup IIS metabase as described in "302573 HOW TO: Back Up and Restore IIS"
5- Set the account name in the metabase
From the command prompt run “cscript adsutil.vbs set w3svc/wamusername "IWAM_account"
6- Set the password in the metabase if you have changed it
From the command prompt run “cscript adsutil.vbs set w3svc/WAMUserPass Password (The password is the one you set in step 3)
7- Verify the IWAM account is correctly set “cscript adsutil.vbs get w3svc/wamusername”
8- Synchronise IWAM "cscript synciwam.vbs -v" and check the output for any errors
9- Restart iis admin
10- Start the Exchange services
See the kb article:297989 PRB: Configured Identity Is Incorrect for IWAM Account
Artikel-id: 838604 – senaste granskning 24 feb. 2017 – revision: 1