What API do I use to send and recieve TCP/IP UDP packets through the
Microsoft Network Client 3.0 for MS-DOS?

Is it a software interrupt? Is there a LIB that I have to link into my
program? What functions are available?

A sufficient answer would simply be two C code sinpets, one to send a
UDP packet and onme to recieve one asyncronously.

I'd also accept a reference to any sort of document called anything
"Writing DOS applications that use the Microsoft Network Client 3.0
for MS-DOS for TCP/IP functionality". You get the idea.

I'm a pretty well versed programmer and I know how to access TCP/IP
funtions in Windows/Linux/etc. I even know how to access TCP/IP
functions under DOS when using the Novell and PCTCP stacks. I jst
can't find any info on the API to the Microsoft DOS TCP/IP stack.

I am not asking for help on understanding what TCP/IP is, how to write
TCP/IP programs, or when to use UDP or TCP. I don't need advice like
"you should just write you program to run on windows" or "you should
just use the serial port". I need to know specifically how to
programatically use the Microsoft Network Client 3.0 for MS-DOS TCP/IP
stack to send and recieve UDP packets.

Thanks!

Thanks!

I can't add the anwser in this page, so i add one comment to you.Hope
my answers can help you.

Microsoft network client 3.0 just provide a ability to access
network,give you a operation system level support. NO some API exists
in dos envirment. but you can use WATTCP, it is one open source
libary, you can search and dowload it using google. as i know, Ghost
use this libary to implements network function under DOS. you can
download the source code and some useful sample code in C language. i
think that is you want.

Hope this cant help you, if you have any question,please email to me.
i am very glad to discuss it with you.

Sorry for my poor english, my first language is chinese,fogive me.

Wang Jin