How to install a new key file:

• save the license key to an easily accessible folder on your harddrive
• open Kaspersky Anti-Virus 6.0 or Kaspersky Internet Security 6.0 main application window
• go to the Service tab
• left-click the License Info section
• in the open window click the Activate button
• in the Setup Wizard window select Apply existing license key
• click Next

If the currently used key file for Kaspersky Anti-Virus 6.0 or Kaspersky Internet Security 6.0 is still valid, the corresponding warning window will be displayed.

• in the Activation window click the Browse button
• select the folder in which you unpacked the contents of the received archive with the key file/ saved the key file
• double-click the key file
• see the information about the added key file and click Next
• in the last Activation window click Finish
• close the window with the info about the used license keys
• minimize the main window of Kaspersky Anti-Virus 6.0 or Kaspersky Internet Security 6.0

The dialog windows of Kaspersky Anti-Virus 6.0, Kaspersky Anti-Virus 6.0 MP1, Kaspersky Internet Security 6.0, Kaspersky Internet Security 6.0 MP1, Kaspersky Anti-Virus 6.0 for Windows Workstations and Kaspersky Anti-Virus 6.0 for Windows Servers are the same but with the corresponding product names and the number of Protection components. In Kaspersky Anti-Virus 6.0 for Windows Workstations and Kaspersky Anti-Virus 6.0 for Windows Servers the Activate using the activation code option is not available