Parsing MD5 Values of existent files to determine which files are out of date

EZPPClient Installer/MD5Util.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace EZPPClient_Installer
+{
+  class MD5Util
+  {
+    public static string CalculateMD5(string filename)
+    {
+      using (var md5 = MD5.Create())
+      {
+        using (var stream = File.OpenRead(filename))
+        {
+          var hash = md5.ComputeHash(stream);
+          return BitConverter.ToString(hash).Replace("-", "").ToUpperInvariant();
+        }
+      }
+    }
+  }
+}