sending data PC to PC for every 40ms, what is the best ans fast way?

[Logic]

I need to send a data from a PC to another PC for every 40 ms, what are all the ways available?
What is the delay in each?
What is the best Way?

[shoneill]

Personally I would try using TCP/IP over a network connection. A crossover cable where only the two computers of interest are connected should guarantee good transfer (No other components hogging the bandwidth).

As to software methods, Datasocket seems to be suitable, although I have never used it myself (Pardon my ignorance please, I just don`t need it).

Shane.