README for Multitst source code   (c) bob quinn    march, '97

Description:
------------
The multitst application allows testing of optional features in
WinSock 1.1, namely multicast and raw (ICMP) sockets.

NOTE: This is meant as an exploratory program, so it isn't pretty.
There are a series of steps to use it, as detailed below.  The
big advantage is that you can vary the order of things, and try
individual socket options.

Instructions for multicast use:
-------------------------------
  - use the "Socket" command from the menu to get a socket, and
     it registers for FD_READ notification
  - select the "Bind" command from the menu
  - zero-out the "Local Address" and press the "bind()" button,
     then press the "OK" button.
  - select the "SockOpts" command from the menu.
  - if you are using the WinSock 1.1 TCP/IP installation that comes 
     with Win95 (i.e. *without* the beta WinSock 2 installed),
     you should uncheck the "BSD option values (or Deering's).
  - with the "IP_ADD_MEMBERSHIP" radio button selected, you 
     should then press the setsockopt() button.  At this point,
     you should have joined the multicast group, and since
     loopback is enabled by default, you should recieve anything
     that you send.  Now press OK to leave this dialog box.
  - select "Sendto" from the menu
  - press the "sendto()" button, and you should see a message
     box appear with each send to indicate receipt of the message.

File List
--------
WinSock 1.1 version also available at http://www.sockets.com/samples.htm
The version included here contains a project file and WS2 updates not 
found at my website.

multi_11.exe : links with WSOCK32.DLL - multicast works with WS2
multi_20.exe : links with WS2_32.DLL - never gets FD_READ msgs

ICMPPING.C 
ICMPPING.H     
MULTITST.DEF
MULTITST.ICO
RESOURCE.H
MULTI_32.DEF
Multitst.rc
Multitst.h
WSOCK32X.LIB - my library; source available at my website, if needed
Multitst.c

multi32.mdp - MSVC4 project for WS2 bulid
multi32.mak - MSVC4 makefile for WS2 build

multi_32.mak - my makefile for WS1.1 32-bit build
MULTITST.MAK - my makefile for WS1.1 16-bit build (MSVC 1.52)