Hi Eddy,
Have exact same problem . From the Chest , I have restored and added the relevant file ( WPWIN8.EXE ) to the list of exclusions in Settings-Antivrus , but the exclusion does not work ( even after a reboot ) . Paddyo - the only way I have found to run Wordperfect , until this gets rectified is to , restore the file from the chest and then disable Avast Shields . You may want to disconnect from the internet while you do this . After finishing Wordperfect , you need to re-enable the shields . Avast will then again take the file WPWIN8.EXE into the chest , and you will need to restore it again , next time you want to run Wordperfect