C-Sharp Meta-Daten (Author, Titel, Typ, usw.) aus Datei auslesen

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace GetExtendedProperty {
    class Program {
        [STAThread]
        static void Main(string args) {
            string filepath = @"D:\Test.otf";  
            Shell32.Shell shell = new Shell32.Shell();
            Shell32.Shell objShell = shell.Application;
            Shell32.FolderItem2 itm = (Shell32.FolderItem2)objShell.NameSpace(Path.GetDirectoryName(filepath)).ParseName(Path.GetFileName(filepath));
            Console.WriteLine("Type:\t" + itm.ExtendedProperty("{B725F130-47EF-101A-A5F1-02608C9EEBAC} 4"));  
            Console.WriteLine("Title:\t" + itm.ExtendedProperty("{F29F85E0-4FF9-1068-AB91-08002B27B3D9} 2"));  
            Console.WriteLine("File version:\t" + itm.ExtendedProperty("{0CEF7D53-FA64-11D1-A203-0000F81FEDEE} 4"));  
            Console.WriteLine("Copyright:\t" + itm.ExtendedProperty("{64440492-4C8B-11D1-8B70-080036B11A03} 11"));  
            Console.WriteLine("Company:\t" + itm.ExtendedProperty("{D5CDD502-2E9C-101B-9397-08002B2CF9AE} 15"));  
            string authors = itm.ExtendedProperty("{F29F85E0-4FF9-1068-AB91-08002B27B3D9} 4") ?? new string { };  
            Console.WriteLine("Author:\t" + String.Join(",", authors));  
            Console.WriteLine("Trademarks:\t" + itm.ExtendedProperty("{0CEF7D53-FA64-11D1-A203-0000F81FEDEE} 9"));  
            Console.WriteLine("File description:\t" + itm.ExtendedProperty("{0CEF7D53-FA64-11D1-A203-0000F81FEDEE} 3"));  

            Console.WriteLine("\n\nPress any key to exit");  
            Console.ReadKey();
        }
    }
}