If you have a valid (30) day trial copy of Kaspersky Anti-Virus 2009 / Kaspersky Internet Security 2009 and you get the error message: “Key is Blacklisted”, please follow the procedure below to resolve the issue:
Delete the existing key for the trial version by going into Licence - Merge/Delete - Delete Key
Reactivate by clicking on - Activate the Application then Activate a Trial Version
This should reactivate the trial version and will remain valid according to the remaining days left on the original key.
Kaspersky Lab would like to apologize for any inconvenience this problem may have caused users.