I just downloaded B575 again on my XP-SP3 system. This time it installed.
1. I ran a registry scan...not aggressive. I used the Fix option and it appeared to delete the keys...no fixes. The keys found were the typical garbage keys.
2. So I ran a registry compact (with ALL my programs disabled). On reboot, startup programs loaded. However, Windows Explorer went 100% busy and the startup did not fully complete. I had to hard reboot.
3. Tried to reboot again...no luck.
4. Did a system restore to get back to normal. Re-installed B 569 and repeated the above steps. All worked fine and system rebooted fine...no problems.