>Dear all,
>
>I would like to build a remote program using DCOM method. I have already tested the DCOM object and worked fine on LAN. When I want to connect the DCOM server via RAS, an error message "RPC Server is unavailable" prompted. I used TCP/IP and NETBEUI protocol for RAS connection. The remote PC can view and map the network resource of RAS Server. I registered the DCOM object with IP address or Computer Name of RAS Server using CLIREG32. So, what's the problem?
>
>Anyone can help me!! I'm looking for the solution as soon as possible. Thank you for your help ....
>

Is the server using a firewall? DCOM by default operates on any number of a set of ports between 1024 and 65535.