Hi!

I have one program running multiple copys (acting as IP <-> serial
port) of the same program (no connection to eachother) and they all
work fine for a while then some starts slowng down, then others, and
then magically all work fine again...

How did I come to know that?

Just to test the system did a "loop: dir /s goto loop" sorta thing on
all of the clients to load the system with about 20 apps/windows
connected to the server...

Can I prevent this, well I know Windows is not a RTOS but can I at
least control the behaviour by code?

Yes, this is maybe not a straight forward c# q, but I had to ask
somewhere...

Threding the app? (better/worse)
putting all in real-time (should be the same I think exept that it
might prevent me from getting in)
Windows XP is designed to do that?
Write it in assembler on a unix base? (never done that, will not go
there)
Putting in terminal servers (those are the ones Im trying to get rid
of)

//CY