First,

Is this a DLL or an EXE? If a DLL, you shouldn't use CREATEOBJECTEX, but you should Export the MTS package from the server and do a client install on the local PC. If this is an EXE, you shouldn't be running it under MTS. In that case, recompile it as a DLL.

As for the modem problem, a bit more information will help. Are you connecting to your office network via the modem? Have you unregistered the COM component on the local machine and then done the client install as described above?

>Hi!
>
>I made following:
>
>Server COM object located in our company computer with IP address accessable from the outside world. It is registered under MTS and account for COM object - just administrative account in the local domain. When running this object in the local network (local domain) using following command:
>
>CREATEOBJECTEX("{GUID}","IP.ADDRESS")
>
>all works very well.
>
>However, when I run it using my modem connection to internet from home, I get error
>"OLE Error code 0x800706d3: The authentification service is unknown"
>
>COM server machine is Windows NT, my home machine is similar to which was used for testing in the local domain (W2000).
>
>Can someone explain me what is wrong with authentification and what I require to configure to get it work through modem connection?