http://blogs.msdn.com/b/ie/archive/2006/12/06/file-uris-in-windows.aspx

This would be ```file://server/share/windows/path/file.txt``` which is why we confusingly need a third slash in the previous example with a local drive, because we're leaving out the hostname. In theory, these two are the same:

file://localhost/share/windows/path/file.txt
file:///share/windows/path/file.txt