Here is the story in detail and what happened during the uninstall.
First if you don’t have Exchange 2007 SP1 CD don’t attempt to remove Rollup4 as it will ask for it. It never asked for Rollup3 file (that info was wrong) it’s asking for exchangeserver.msi file which can be found on the CD…
As the uninstallation begins it will stop all your exchange services and disable them so be smart and write them down just in case. Microsoft assured me a million time that removing rollup4 will not stop my services or effect my production environment (WRONG!!!) it will stop everything for about 3 minutes and it will ask for the CD and if you don’t have it be ready to have people breathing down your neck.
Well first I did not have the CD so as it asked for the file I started to think where can I get the file from.. I called Microsoft and of course it was a fight to get to support as they think this was not urgent matter they filed it under C level (heck I know what that means) It means I cant send and receive emails and all services are disabled and I am dead in the water.
I cancelled the uninstall and tried to install Rollup3 on top no luck. Now I have disabled services and nothing working. I enabled all the services again (I wrote them down) and rebooted…
Email worked but I could not receive external emails I could send and receive internally and send externally as well. Now The support engineer was reading his notes with no answer and I am 100 degrees hotter.
I put him on hold and I look for the CD.. as I pointed to it and the msi file everything worked the uninstallation went through and services came back again. No reason to reboot.
HOWEVER, OWA was dead… so Microsoft engineer still reading.
I go to services and I see that ISS is dead, WWW services are dead and all its dependencies are dead. I enable all of them in the right order and OWA is WORKING.
I DANCE and kick the Microsoft guy off the phone…
No need to reapply Rolup3 in any case you can’t because you have to remove it first and reboot and re-apply which is a 15 min process.
Everything is working fine now but I get a warning
ASP.NET 2.0.50727.0
Web event
Event ID 1309
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 9/17/2008 11:08:13 AM
Event time (UTC): 9/17/2008 6:08:13 PM
Event ID: 2d89d91b88004e55b4428253a8c6e98c
Event sequence: 43
Event occurrence: 42
Event detail code: 0
Application information:
I need this fixed.