How to capture the contents of a DOS window at W2000 or W98

Hi!
I'm new around here...
I am developing a program which needs to interact with another one in DOS, so I am planning to run that one in a DOS window and my program will need to capture and then send characters to the DOS one...
Any ideas on how to do this????

Thanx!

Javier

if you are using VB could use the shell function...

I mustly use C/C++, and VC, CBuilder, etc... but if I should change to another, I may...
Anyway... isn't the shell function just going to make my program to run in DOS mode? that's not what I need, what I need is that my program 'read's the contents of another DOS program (running in another window, or process), and then also to send to it characters...

Any more ideas?
thanx again!!!!