Most VFP 8 functionality works without registry keys. However:
To run:
D:\PortableApps\VFP8\vfp8.exe your_app.prg
Some required DLLs live in the Windows system folder. Copy these from C:\Windows\SysWOW64\ (for 64-bit Windows) into your portable folder: visual foxpro 8 portable
If you'd like, I can:
Creating a portable version of Visual FoxPro 8 (VFP8) is a common request for developers who need to maintain legacy systems on modern versions of Windows without performing a full installation every time they switch machines. Most VFP 8 functionality works without registry keys
Because VFP8 is an older product (released in 2003), it relies on specific runtime libraries and COM registrations. A "True Portable" version (running entirely without registry modifications) is difficult, but a "Semi-Portable" version (running from a folder/USB with a quick registration script) is very stable. To run: D:\PortableApps\VFP8\vfp8
Here is a solid guide to creating your own Visual FoxPro 8 Portable.