the FHFS folder doesn't inherit all the security permissions from the C:\ for some reason.
As for creating multiple users with the same browser, a simple clearing of the cookies in your browser should do that trick.
1) That shouldn't affect every computer though and would react the same way with regular HFS
2) In V1.1 there's an option for that... run the installer.
Also anyone asking for help please make sure you're running the newest version before you ask because I'm constantly finding and fixing things that got screwed up and new builds come every couple days as I have time (though not for a while after now)
Also note that the following has already been fixed for 1.1.1 (just put up) and then that will probably be the last or at least penultimate version for a while...
Fix: Submission script was still checking for signed up cookie even if the option was disabled
Improve: Decompressed the ajax.signin script, ADDED COMMENTS
Fix: The browser would redirect to a nonexistant page if clicking submit on the signin prompt w/o input
Improve: More small changes to the readme
Fix: Browsing with the URL
http://localhost/ would loop a redirect
Improve: Re-wrote the wrongemail2 alert on the newaccount page
Improve: If signing in with the validation ID cookie, it redirects
Fix: Shared folder buttonheaders weren't as wide as they should have been