Error: Service Control Manager

I have Windows 2000 server installed. PIII, 128MB RAM. I have enabled internet connection sharing. 1. When windows starts it gives following errors:
he Internet Connection Sharing service depends on the Remote Access Connection Manager service which failed to start because of the following error:
The service cannot be started, either because it is disabled or because it has no enabled devices associated with it.

2. The radmm service failed to start due to the following error:
The service did not respond to the start or control request in a timely fashion.

3. Timeout (30000 milliseconds) waiting for the radmm service to connect.

What is the problem
how to solve it..