The ( wincmd.key ) is a brilliantly simple solution to software licensing. It eliminates the need to remember long serial numbers, supports portable operation, and respects user privacy.
The Key File is a small encrypted file containing the user’s registration details. When present in the installation directory, it unlocks the software, removing the startup nag screen (the "nag screen" requires the user to click a specific button like 1, 2, or 3) and enabling full functionality. Total Commander Key File
Locate your key file