I had Exchange server 2007 sp1 installed on windows server 2008, downloaded the sp2 file, ran it. It crashed on install, since then have been unable to recover, install, update, uninstall. I have gone though many pages to try and resolve this, and still having no luck. at the moment i'm getting :Log Name: Application
Date: 23/10/2009 3:32:32 PM
Event ID: 11402
Task Category: None
Product: Microsoft Exchange Server -- Error 1402. Could not open key: UNKNOWN\Components\1FA18F7974E099CD0AF18C3B9B1A1EE8\461C2B4266EDEF444B864AD6D9E5B613. System error 5. Verify that you have sufficient access to that key, or contact your support personnel.
When i'm trying to install, update or recover.
When i try to uninstall i get an error code 5, and following the information i can find by re-regestring the dll file, it doesn't resolve it. this is a production server, and is also dc/gc