Int 2F Fn 1611  U - Ms-dos 7 Kernel - Get Shell Parameters                 [D]

   AX = 1611h

Return: AX = 0000h if supported
       DS:DX -> primary shell's executable name
       DS:SI -> prinary shell command line (counted string)
       BH = ??? (00h)
       BL = ??? (00h)
Desc:  return the program name and commandline from the CONFIG.SYS SHELL=
     statement

See Also: AX=160Eh,AX=160Fh,AX=1612h,AX=4A33h