Int 65  U - Ezrecv V1.0 - Api                                              [S]

   AX = function
       0000h ???

       Return: AX = ??? or FFFFh
       0001h ???

       Return: AX = status (0000h or 0001h)
       0002h ???

       Return: AX = status (0000h or 0001h)
       0003h set ??? to 0001h

       Return: AX = 0000h
       0004h ???

       Return: AX = ???

Return: BH = COM port being used
   BL = speed???
   CH = ???
   CL = ???
   DX = ???
   DS = ???
   ES = EZRECV data segment
Program: EZRECV is a background Zmodem file receiver by Express Consulting