It may inject code into prl_disp_service (the Parallels background service) to suppress license checks.
The tool monitors and occasionally deletes or rewrites license.xml and product.pri files within the user’s Parallels preferences. Installation and Setup Guide PD Runner 0.3.8
PD Runner 0.3.8 is an unofficial, high-risk cracking tool for Parallels Desktop. While it may successfully bypass trial restrictions on certain older versions of Parallels Desktop and macOS, it introduces significant security, stability, and legal liabilities. It may inject code into prl_disp_service (the Parallels