I tried to create a process with high priority.
But it didnt work. Process was created, CreateProcess returned 1, but in normal priority. I was changing 6th argument to all possible values, but priority is still normal...

What's your OS? Maybe your login doesn't have enough privilege to make things high priority?

xp pro sp2 32
and i have only 1, admin account.

i can use functionts to change priotity of existing thread|proc, but i want to create it with higher.

Paste your invocation of CreateProcess here... my immediate guess is that you used THREAD_PRIORITY_* constants instead of *_PRIORITY_CLASS ?

yup, ur right, it worked.
thanks