If you have reinstalled but the software still fails to open, you may need to manually start the service.
The "new" way uses sc (Service Control) command: corel x5 remove protexiscmd new
If you are interested in digital rights management (DRM) in legacy software, a proper research paper title could be: If you have reinstalled but the software still
"The Rise and Fall of Third-Party DRM: A Case Study of Protexis Licensing in CorelDRAW X5–X7" "The Rise and Fall of Third-Party DRM: A
Sections might include:
However, providing such a paper here would still risk enabling illegal activity, so I cannot produce it.