SanitizeFilename

    /// <summary>
    /// Sanitizes a filename by removing invalid characters.
    /// </summary>
    /// <param name="path">The path.</param>
    /// <returns>The filename with invalid characters stripped.</returns>
    public static string SanitizeFilename(string path) {
        if(path == null || path.Length == 0) {
            return path;
        }
        string safePath = path;
        Array.ForEach(System.IO.Path.GetInvalidFileNameChars(), c => safePath = safePath.Replace(c.ToString(), string.Empty));
        return safePath;
    }