Some modern antivirus programs (Windows Defender, McAfee, Norton) flag the legitimate psikey.dll as a "Potentially Unwanted Program" because it’s an older activation module.
: If you receive an error stating the file is missing, it is often due to an incomplete installation or accidental deletion by antivirus software. Restoring Functionality :
dir "C:\Program Files\Corel\CorelDRAW Graphics Suite X4\psikey.dll" /s
"The application has failed to start because psikey.dll was not found."