// Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
// so remove all trailing backslashes from the path - but don't do this for
// the pathes "d:\" (which are different from "d:") nor for just "\"
// Windows fails to find directory named "c:\dir\" even if "c:\dir" exists,
// so remove all trailing backslashes from the path - but don't do this for
// the pathes "d:\" (which are different from "d:") nor for just "\"