Created a properties form, testing dynamic UI building for the relevant MKV attributes.

MKVTest/MkvWriter.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace MKVTest
+{
+    class MkvWriter
+    {
+
+        public bool WriteMkvMetaData(string commandString)
+        {
+            var process = new Process();
+            var startInfo = new ProcessStartInfo
+            {
+                WindowStyle = ProcessWindowStyle.Normal,
+                FileName = "cmd.exe",
+                Arguments = commandString
+            };
+            if (!CheckFiles())
+            {
+                throw new FileNotFoundException("Required files, mkvpropedit.exe and mkvinfo.exe not found.");
+            }
+            process.StartInfo = startInfo;
+            process.Start();
+            while (!process.HasExited)
+            {
+
+            }
+            if (process.ExitCode == 0) return true;
+            var error = File.ReadAllLines("temp.txt");
+            throw new ApplicationException(error.ToString());
+        }
+
+        public static bool CheckFiles()
+        {
+            return File.Exists("mkvpropedit.exe") && File.Exists("mkvinfo.exe");
+        }
+    }
+}