You are searching for abandonware. Microsoft no longer sells or supports VFP 6.0. The official download links are dead. This pushes users to torrent sites, file upload forums, and anonymous FTP servers.
Here are the real dangers:
Many .rar packages are incomplete. They lack the ODBC drivers or the "FoxPro OLE DB Provider." Without these, you cannot connect to modern systems. Visual FoxPro 6.0 Portable.rar
A manufacturing plant runs a custom-written VFP6 EXE for inventory. The original source code lives on a dying Windows XP machine. The developer needs to fix a bug today, but IT won't give them admin rights to install VFP6 on Windows 11. A portable version allows them to open the project, edit the PRG, and recompile immediately. You are searching for abandonware