PHANDLE HandlePtr,
      PUCHAR KeyName,
      PUCHAR CreateKeyClass

Routine Description:

    Given an asciiz string, this routine will open a key in the configuration
    registry and return the HANDLE to the caller.


    HandlePtr - location for HANDLE on success.
    KeyName   - asciiz string for the key to be opened.
    CreateKeyClass - if NULL do not create key name.
                     If !NULL call create if open fails.

Return Value:

    NTSTATUS - from the config registry calls.