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Tech Tips / Windows NT / Networking

Problems with RRAS and RASPHONE

If you've moved to Routing and Remote Access Services (RRAS) for a combined user dial-in/inter-network solution on the same NT 4.0 server, you may have run into a weird error message while running Remote Access Services Phonebook.

You're in for a little registry editing if you see the following error:

  An application error has occurred and an application log is being generated.
  RASPHONE.EXE
  Exception: access violation (0xC0000005, Address 0xnnnnnnc)

The problem typically lies in invalid or corrupt keys at HKEY_CURRENT_USER\Software\Microsoft\RAS Phonebook\Callback. Open the registry editor and delete any keys that are not in this form:

  DEVICE_NAME (PORT)

Note: Always be sure you have a verified backup before making editing the registry. Also, Microsoft advises that you need to be running a minimum of Service Pack 4 before moving to branch routing.