Kaspersky Anti-Virus Program is very good and powerful. So that increasingly demand a lot. Now for that use Kaspersky Anti-Virus (KAV) or Kaspersky Internet Security (KIS) should know that the key file masing2 different program. Keyfile for Kaspersky Anti-Virus (KAV) can not be used for Kaspersky Internet Security (KIS), and vice versa.Kaspersky blacklist to keyfile often do these, it is because many use the same Key Files simultaneously when the update online. So if you have been hit by Kaspersky blacklist should be to replace and update the new keyfile.
Key File Kaspersky 2009 can be used also for Kaspersky 2010, and vice versa.
