When you use the SBS Shared Fax printer driver with a Windows 2008 Terminal Server, you need to have the Fax and Scan applet installed. Without it, you’ll see a “Windows cannot find sysOCMgr.exe" error when you try to send a fax.
Installing the applet is not the same as in Vista. For Server 2008, open the Server Manager and add the Fax Server role. This also installs the Fax and Scan applet.
It’s also necessary to have the Desktop Experience Feature installed as well.