Getting [0xC3EC78D8] error when trying to install Office Communications Server 2007 R2
Description
You get one of the following error messages when trying to install Office Communications Server 2007 R2:
"Failure [0xC3EC78D8] Failed to read the Office Communications Server version information. This can happen if the computer clock is not set to correct date and time."
--- OR ---
"[0xC3EC796C] One or more errors occurred during execution of the wizard; the wizard was unable to complete successfully. Please check the log file for more information."
Note: the date and time on the server are correct.
Solution
The issue is caused by KB974571 (MS09-056: Vulnerabilities in CryptoAPI could allow spoofing):
Security Update for Windows Server 2003 (KB974571)
Uninstall this update and reboot the server to resolve this.
Affected software:
Microsoft Windows 2003
Microsoft Windows 2008
Microsoft Windows 2008 R2
Office Communications Server (OCS) 2007 R2