OCS 2007 R2 failed services to start

Hi Experts,

After trying of deploying OCS 2007 R2 group chat server, I can't start the Office Communications server Audio/video conferencing service and the office communications web conferencing service on server. OCS was ok untill yesterday, and now i've got that error, i really don't know why.

Error 1053 cannot start the service, the service did not respond to start or control request in a timely fashion

Basically I did the following steps without any success:

First, I deactivated the OCS SE services (in particular order below)

A/V

Web Conf

Web Components

Front End

Second, uninstall OCS EE services (add/remove programs)

A/V

Web Conf

Front End

Third, wait for AD to replicate the changes (typically 15-60mins).

Fourth, reinstall OCS EE

Fifth, Deploy the pool, and install web components, etc

Sixth: Tried of activating the application from the OCS 2007 R2 tools and no luck

Any ideas.

Jerry SeinfieldAsked:
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gaanthonyConnect With a Mentor Commented:
Do you see any errors like below?  If so, deactivate and rebuild the OS on the OCS Server as WMI is probably corrupt.
Event Type: Error
Event Source: OCS Application Server
Event Category: (1055)
Event ID: 32008
Date:
Time:
User: N/A
Computer:
Description:
The Application Host failed to load an application.

 
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Jerry SeinfieldAuthor Commented:
I can see some errors from the event viewer as per below

Office Communications Server Web Conferencing Server could not be started

Message: Unable to load DLL 'PwdExpiryCheck.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
   at Microsoft.Rtc.PwdExpiryHelper.PasswordExpiryHelper.PwdExpiryCheckShutdown()
   at Microsoft.Rtc.Server.DataMCU.ServiceWorker.StartServer(String[] args)

Cause: Look in previous event logs for more information about this error

Any ideas?
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Jerry SeinfieldAuthor Commented:
I had to recreate the VM machine(OS, OCS, etc), also created a new pool with a different name and now is working OK.

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nc3aCommented:
Hi, I have the same problem.
A full reinstallation is not really an option.
Does anybody have a better idea ?

Could not connect to Active Directory to read configurations settings. Will retry in 30 seconds.

Office Communications Server Web Conferencing Server could not be started

Message: Unable to load DLL 'PwdExpiryCheck.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
at Microsoft.Rtc.PwdExpiryHelper.PasswordExpiryHelper.PwdExpiryCheckShutdown()
at Microsoft.Rtc.Server.DataMCU.ServiceWorker.StartServer(String[] args)
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mara1Commented:
I had this error as well.  Fix for me was to apply the update package for Communications Server 2007 R2, Core Components: April 2009: KB967827
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