BDC Dialing Permission

I was wondering if there is a way around my problem

I have a program which add users to the NT User Manager domain from a text file. One of the thing I do in the program is to give them the capability to dial the RAS Server and connect. This program works on a PDC. But when I run this program from a Backup Domain Controller, I get a error "This function can only be run from a PDC". I am using the following code

      if (UserAdded)
      {
      
            ras_user.bfPrivilege = RASPRIV_DialinPrivilege | RASPRIV_NoCallback;
            dwResult = RasAdminUserSetInfo(lpwsUserServer,lpszName, &ras_user);
            if (dwResult == 0)
            {
             printf("User configured for Remote Access. \n");
            }
            else
            {
             printf("Unable to configure User for Remote Access. Result Code was %i\n", dwResult);
            }

      }

The lpwsUserServer is set to Null.

I get a error code of 2226.

Is there a way I can do this from a BDC.

Thanks a lot

RC