>any idea how i can obfusicate my VFP code ?

I don't know of a VFP obfuscator (other than removing all comments :))

There is a product which supposedly compiles VFP source to a C++ DLL/EXE: http://www.baiyujia.com/vfpcompiler/en/default.asp

I understand John Ryan has worked with this product and has praised both it and its developer. I haven't looked at it myself.

The beauty of this approach is that C++ executables are widely considered to be impossible to meaningfully decompile.

There were some threads about this product on Foxite e.g. http://www.foxite.com/archives/who-can-hack-this-one-0000260349.htm . Also see the links at the bottom of http://www.baiyujia.com/vfpdocuments/f_vcfaq_en.asp .

One takeaway from the above is it seems none of the dedicated VFP pseudo-code protection schemes (ReFox etc.) are of any value against even semi-motivated hackers.

Another general approach you could look at would be to never give your customers executables e.g. offer it as a service (SaaS), via web site, web service etc.