Latest update at 13:38 on April 3, 2009. There are 16 key authorization files in the compressed package. Friends whose keys were previously blocked, please download the latest version. In the past two days, Kaspersky official has started to block keys wildly. If your key authorization file was blocked shortly after you downloaded it, please do not worry. We will update it again at the first time. I have used a lot of antivirus software before, but after trying them all, I still think Kaspersky is the most useful. The software ranked first in the world is indeed extraordinary.