: Open Windows Services ( services.msc ) and ensure the Protexis Licensing V2 service is set to "Manual" or "Automatic" rather than "Disabled".
: CorelDRAW X4 requires the Protexis Licensing V2 service to run. Psikey-2.dll Corel X4
If you did not intend to use a crack (e.g., you downloaded a "free" installer from a torrent site): : Open Windows Services ( services