>Its not invalid, because of the winframe VFP cannot find the file and it throws out this error make sure that the runtime exist on the winframe machine and that might be a solution.

The Winframe show the path and the file. I even put a FILE('Foxtools.fll') before it called the set library and the File statement return .T. and the fullpath function show where the file was. I will re-install the run time
to see if that helps.