The file PsiKey.dll is a core component of the Protexis Licensing Service, which CorelDRAW X4 uses to manage software activation and anti-piracy checks. If this file is missing, corrupted, or blocked, CorelDRAW X4 may fail to launch, showing errors such as "Trial Expired" or "Runtime Error". Common Fixes for PsiKey.dll Errors
Understanding Psikey.dll and CorelDRAW X4: Installation, Errors, and Fixes
Specifically, the DLL is responsible for: