HOW to use keyfile : Steps : 1. Open Kaspersky 2012 or 2013 License Manager (from lower right corner). 2. Click Activate the application with a new license button. (Delete any trial key first, by clicking the red X next to the key). 3. Disable your internet connection (either disable Network adapter from control panel or turn off your modem/router). 4. Select Activate commercial version and enter the activation license code as T1JVS-NNMBD-K1QTN-SUBP8 or select Activate trial license. 5. Click Next, an error dialog box will open as shown below: 6. Click Ok and you will now get the option to activate kaspersky using a key file. 7. Browse to the key location and activate kaspersky. it is not black listed till now. if it is blacklisted let me know. enjoy!. and last known bad comment by : no-one yet !