Int 2F Fn 7A81  C - Novell Netware - Shell 3.01d Broadcast - Set Shell In  [N]

   AX = 7A81h
   CX:DX -> shell's INT 21h entry point

Return: nothing

Notes: the shell calls this function as it loads to allow interested TSRs
     and drivers to make a local copy of the shell's entry point
   must be passed through so that all interested programs see it