Hi.
I have one problem. I don't know, what I set breakpoint to in/out operations with paralel port.
In SoftIce is instruction "bpio", but i need an alternative in Olly...
Thx.

there is not but you have port monitors, look in the page of the regmon, filemon, i think there is a portmon or so

Ricardo

I'll find portmon... Thx.

www.sysinternals.com ... this is the page if i'm not wrong !!

Try DeviceIoControl