Our MS Exchange server is completely down - after the following, and we need help ASAP:
1. The server ran without any hiccups, when just before December we experienced a problem with OOF. I end up calling MS for support and the problem was related to the AutoDiscover service. The problem was linked to the security certificate.
MS instructed me to uninstall the CAS role from the server.
The plan was to reinstall the CAS role after a reboot and apply SP1 (which was previously installed), which should have resolve the problems altogether.
2. After uninstalling the CAS role, rebooting the server, it does an initial install of the CAS role, but then gives an error message:
The role cannot be installed because the following roles are not current: MailboxRole
(no errorcode, please see attachment)
3. We then uninstalled the rollups (5 accumulative), and SP1.
I tried another few reboots, download / installed SP1 again.
Still the same error, the message store won't mount and I get the error about the "MailboxRole" not current.
4. MS suggested that I extracted the dsproxy.dll from SP1 and copy it into the Exchange installation, I applied rollup-5.
It still fails to install the CAS role.
I am really desperate at this time, as I am not looking forward to rebuild the server, any help will be greatly appreciated.
THE FOLLOWING ERRORS APPEARED IN THE EVENT LOG
(I don't know where the evaluation license-error comes from, as it is a fully registered server and never had this before)
[ERRORS AFTER THE CAS UNINSTALL]
[ROLLUPS AND SP1 UNINSTALL]
Unexpected error The system could not find the environment option that was
Facility: Win32 ID no: c00700cb Microsoft Exchange System Attendant occurred.
Unable to initialize the Microsoft Exchange Information Store service. - Error
Error 0x80004005 initializing the Microsoft Exchange Server Internet Conversion
The DSProxy dll is required but cannot be loaded, error 'c00700cb'.
Invalid CPS Protection Agent license information. : The evaluation license
expired. Please update the server with a new license key.
The Microsoft Exchange Information Store service terminated with
service-specific error 0