UPGRADE TO DUPLICATE FILE DETECTIVE 6
To qualify for Duplicate File Detective 6 upgrade pricing, you must own a license for any previous version.
Note: If you currently have Duplicate File Detective installed, you can find your existing license key within the application itself (see Help | About). Another option is to locate the license email you were sent via email after you purchased (it will contain your license key). If you need assistance, please feel free to email us.