An issue was discovered in Allegro Windows (formerly Popsy Windows) before 3.3.4156.1. A standard user can escalate privileges to SYSTEM if the FTP module is installed, because of DLL hijacking.
https://excellium-services.com/cert-xlm-advisory/CVE-2021-42110
https://cds.thalesgroup.com/en/tcs-cert/CVE-2021-42110
http://www.popsy.com/Documents/Setups/Setup.Allegro.3.3.4154.2.exe