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Can any body give me idea about networking in dos through NIC. i need communication of two system from DOS.

thanks

Chaand

In a simple, 16-bit system, you can use packet drivers to send simple messages back and forth:
ftp://ftp.crynwr.com/drivers/00index.html

Otherwise you need a network "stack". Try these links:
http://my.execpc.com/~geezer/osd/net/index.htm#links