Int 17 Fn 0300  - Dosisode To Wattcp Tsr Interface - "socket"              [N]

   AX = 0300h
   CX = type of socket from  socket( domain, type, protocol )
   DX = local identifier of socket (0 - 31)

Return: AX = 0000h success
       CX = segment of 4500 byte transfer buffer
       DX = offset of 4500 byte transfer buffer
      = FFFFH failure
       CX = error code
       ENFILE      23
Program: DOSISODE is the ISO developers environment which has been ported to
     DOS and will run with the Waterloo TCP turned into a resident TSR.
     Currently it allows a maximum of 6 open sockets.

Note:  this function will initialize the interface the first time it is
     called

See Also: AX=0400h"DOSISODE",AX=0600h"DOSISODE",AX=0800h"DOSISODE"

See Also: AX=0A00h"DOSISODE",AX=0C00h"DOSISODE",AX=0E00h"DOSISODE"