DCOM Event 10006

Hi,

I'm getting a DistributedCOM error in the event log, with the ID 10006 "COM got error "%%%1" from the computer %2 when attempting to activate the server: %3" on my file server.

The computers causing this error are in remote sites, and are not intended to access this server.

My question is: How can I know which DCOM services are requested by these computers?

Thanks.