Int 7A  U - Novell Netware - Ipx Driver - Internal                         [N]

   BX = 001Bh
   ???

Return: ???

Notes: this function is supported on file servers only under v2.15; v3.02 also
     supports it on workstations
   used by NetWare Access Server, which may call INT 15/AX=1117h with
     BX=0000h in some cases (it uses a modified DESQview)