Won't run on a Windows C drive

[philgoetz]

Running on a Windows system C drive leads to an infinite recursion of error messages like this:

error scanning C:\Documents and Settings\All Users\Application Data\Application Data\Application Data\Application Data\Application Data\Microsoft\Windows<etc; path here is irrelevant>

The problem is that, in Win 7 and on, "Application Data" is neither a directory, link, or hard link, but a "juncture". This is another idiotic Microsoft innovation that causes Windows errors frequently and is unfixable because it's baked into the OS. It points at itself, and then "prevents" infinite loops from occurring by putting "deny all read privs" on itself. But since your code is reading directories in some more direct way, it gets past the Windows "deny", and gets the infinite loop.