http://bugs.winehq.org/show_bug.cgi?id=58162
--- Comment #4 from Alexandre Julliard julliard@winehq.org --- (In reply to Patrick Hibbs from comment #3)
I don't see how making a call that Wine already performs internally, detourable, is a problem. It's just an IAT lookup, something that depending on your compiler / linker version and settings could be done accidentally already.
If it's called already then it should work. GetFullPathNameW is already marked as DECLSPEC_HOTPATCH so it should be detourable. There must be something else going on here.