Int 2F Fn 1001  U - Dr Dos 6.0 Share Internal - Set ???                    [d]

   AX = 1001h
   DX:BX -> ???function

Notes: this function is also supported by SuperStor, a disk-compression
     program by Addstor which is bundled with DR DOS 6.0, and the
     Novell DOS 7 DELWATCH.EXE
   the default handler for the pointer set by this call under DELWATCH
     simply returns with CF set

See Also: AX=1000h,AX=F800h