Intel PROSet on Acer 4062

Initial state: wireless works with the pre-installed windows drivers, but I need some features of Intel PROSet.

1. First try: download latest Intel PROSet (version 10.1.1). Install. Reboot. Standard (Windows XP) wireless driver works (as before), Intel PROSet does not work (does not find any Intel Wifi adapter) and configuration changes do not help.
2. Second try. Download Intel PROSet 9.0.0.39 from Acer's site. Install. Reboot. No wireless at all.
3. Third try. Upgrade Intel PROSet to version 10.1.1. It works.