I am getting Application error log as below. I am using Exchange 2007. Not able to get any findings from anywhere.
Process MSEXCHANGEADTOPOLOGY (PID=1860). When updating security for a remote procedure call (RPC) access for the Exchange Active Directory Topology service, Exchange could not retrieve the security descriptor for Exchange server object S-OSC-HO-EX-01 - Error code=8007077f.