Common examples include portable versions of Firefox, VLC Media Player, or 7-Zip. These are often officially supported or created using legitimate "thin client" tools.
While official releases from Corel typically require installation, "portable" versions are often created using virtualization or compression technologies that bundle all necessary system dependencies (like DLLs and registry settings) into a single folder or executable. This setup allows the software to function on any compatible Windows PC by simply launching the main .exe file. Corel X6 Portable