Routing and remote access 20103

I upgraded my ras server from 2000, and since, I can no
longer get RAS to start. The error is as in 299013.

Event ID 20103: Unable to load C:\WINNT\System32
\iprtrmgr.dll.

followed by

ID 7024: The Routing and Remote Access service terminated
with service-specific error 31 (0x1F).

I tried everything suggested in 299013 besides removing
TCP-IP, because the server would not let me do so.

Any idea out there on how to get it back to work?

Any help is appreciated.

Juul