ad-aware free does not include resident protection.
Thanks for your explanation about kerio. But now I do not use any firewall.
I have restored my system to an earlier ghost backup and wondered if my test method are totally wrong now.
Would you please help me test the procedure two or three times:(just a little time)
1. delete file: data\400.vps
2. updating--> iAVS update
3. any new processes will be locked! (esp. new webpages during updating or just after update will freeze...) BTW, my web browser is maxthon ( internet explorer can be used instead of maxthon)