yes, I write that.
but I want to say with system -> the windows system directory
and I want to try with some commands like sys
Its possible to try that

if file('windows\system\file.dbf')=.t.

In VFP the setup wizard put the file in winsystems directory but in FPD I dont know how to do that. except the manual way.
I want that for protection of program, you have some ideeas for that ?