This little guy popped up in my APP launcher when I recompiled with VFP7:

local lcFileName

if !directory("Fullpath Bugtest")
	mkdir "Fullpath Bugtest"
endif

set default to "Fullpath Bugtest"
if !file("Test File.txt")
	strtofile("This is a test","Test File.txt")
endif

lcFileName = chr(34)+"Test File.txt"+chr(34)
clear

? "Original Filespec: "+lcFileName
? "Filespec with FULLPATH: "+fullpath(lcFileName)

set default to ".."

Run this in VFP7 and VFP6, SP5 and the results are different.

VFP6, SP5 Version 06.00.8961.00
VFP7 Version 07.00.0000.9262