Sorry, I'm not understanding your problem.

This trick is to run VFP8 Application in a NT4 or Win95 workstation.
The NT4 that i tested have SP6a installed.

Your development machine with Windows XP does not have and do not have SP6.
By the way, does not mather what update your XP have.

What is important is that the CLIENT machine with Win95 or NT have the last service pack, IExplorer 4.1 or above and fox6runtime files installed.

[]s Moshe.