My application runs under double-processor W2K terminal server.
One of its calculations tasks takes 15 minutes due to very large file sizes.
It mostly runs SQL SELECT clauses and some replace clauses.
I have optimized those as much as possible.

This long calculation blocks the system:

* W2K task manager shows 100% processor usage.
* Other terminal server user gets very slow response time so that
working is impossible.

Question:

How second user can work at this time ?

Is it possible to decrease my long-running VFP program priority by using some application call from VFP or using some W2K setting ?

Or are there some other solution ?