diff --git a/FModel/MainWindow.cs b/FModel/MainWindow.cs
index 4eea5cd6..04c07e21 100644
--- a/FModel/MainWindow.cs
+++ b/FModel/MainWindow.cs
@@ -468,29 +468,12 @@ namespace FModel
 
         #region PAKLIST & FILL TREE
         //METHODS
-        private string ReadPakGuid(string pakPath)
-        {
-            using (BinaryReader reader = new BinaryReader(File.Open(pakPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
-            {
-                reader.BaseStream.Seek(reader.BaseStream.Length - 61 - 160, SeekOrigin.Begin);
-                uint g1 = reader.ReadUInt32();
-                reader.BaseStream.Seek(reader.BaseStream.Length - 57 - 160, SeekOrigin.Begin);
-                uint g2 = reader.ReadUInt32();
-                reader.BaseStream.Seek(reader.BaseStream.Length - 53 - 160, SeekOrigin.Begin);
-                uint g3 = reader.ReadUInt32();
-                reader.BaseStream.Seek(reader.BaseStream.Length - 49 - 160, SeekOrigin.Begin);
-                uint g4 = reader.ReadUInt32();
-
-                var guid = g1 + "-" + g2 + "-" + g3 + "-" + g4;
-                return guid;
-            }
-        }
         private void RegisterPaKsinDict(string[] allYourPaKs, ToolStripItemClickedEventArgs theSinglePak = null, bool loadAllPaKs = false)
         {
             for (int i = 0; i < allYourPaKs.Length; i++)
             {
                 string arCurrentUsedPak = allYourPaKs[i]; //SET CURRENT PAK
-                string arCurrentUsedPakGuid = ReadPakGuid(Settings.Default.PAKsPath + "\\" + arCurrentUsedPak); //SET CURRENT PAK GUID
+                string arCurrentUsedPakGuid = ThePak.ReadPakGuid(Settings.Default.PAKsPath + "\\" + arCurrentUsedPak); //SET CURRENT PAK GUID
 
                 if (arCurrentUsedPakGuid == "0-0-0-0") //NO DYNAMIC PAK IN DICTIONARY
                 {
@@ -546,16 +529,16 @@ namespace FModel
                 if (theSinglePak != null)
                 {
                     ThePak.CurrentUsedPak = theSinglePak.ClickedItem.Text;
-                    ThePak.CurrentUsedPakGuid = ReadPakGuid(Settings.Default.PAKsPath + "\\" + ThePak.CurrentUsedPak);
+                    ThePak.CurrentUsedPakGuid = ThePak.ReadPakGuid(Settings.Default.PAKsPath + "\\" + ThePak.CurrentUsedPak);
 
                     if (arCurrentUsedPak == theSinglePak.ClickedItem.Text && JohnWick.MyExtractor.GetFileList() != null)
                         PakAsTxt = JohnWick.MyExtractor.GetFileList().ToArray();
                 }
             }
-            if (theSinglePak != null && ReadPakGuid(Settings.Default.PAKsPath + "\\" + theSinglePak.ClickedItem.Text) != "0-0-0-0") //LOADING DYNAMIC PAK
+            if (theSinglePak != null && ThePak.ReadPakGuid(Settings.Default.PAKsPath + "\\" + theSinglePak.ClickedItem.Text) != "0-0-0-0") //LOADING DYNAMIC PAK
             {
                 ThePak.CurrentUsedPak = theSinglePak.ClickedItem.Text;
-                ThePak.CurrentUsedPakGuid = ReadPakGuid(Settings.Default.PAKsPath + "\\" + ThePak.CurrentUsedPak);
+                ThePak.CurrentUsedPakGuid = ThePak.ReadPakGuid(Settings.Default.PAKsPath + "\\" + ThePak.CurrentUsedPak);
 
                 try
                 {
@@ -774,7 +757,7 @@ namespace FModel
             for (int i = 0; i < allYourPaKs.Length; i++)
             {
                 string arCurrentUsedPak = allYourPaKs[i]; //SET CURRENT PAK
-                string arCurrentUsedPakGuid = ReadPakGuid(Settings.Default.PAKsPath + "\\" + arCurrentUsedPak); //SET CURRENT PAK GUID
+                string arCurrentUsedPakGuid = ThePak.ReadPakGuid(Settings.Default.PAKsPath + "\\" + arCurrentUsedPak); //SET CURRENT PAK GUID
 
                 if (arCurrentUsedPakGuid == "0-0-0-0") //NO DYNAMIC PAK
                 {
diff --git a/FModel/Methods/JohnWick/JohnWick.cs b/FModel/Methods/JohnWick/JohnWick.cs
index 16dc05f8..6e8075a5 100644
--- a/FModel/Methods/JohnWick/JohnWick.cs
+++ b/FModel/Methods/JohnWick/JohnWick.cs
@@ -13,6 +13,8 @@ namespace FModel
     {
         public static PakAsset MyAsset;
         public static PakExtractor MyExtractor;
+        private static string[] myArray { get; set; }
+        private static string currentPakToCheck { get; set; }
 
         private static string GetMountPointFromDict(string currentItem, bool DynamicPak = false)
         {
@@ -41,8 +43,11 @@ namespace FModel
 
         public static string ExtractAsset(string currentPak, string currentItem)
         {
-            MyExtractor = new PakExtractor(Settings.Default.PAKsPath + "\\" + currentPak, Settings.Default.AESKey);
-            string[] myArray = MyExtractor.GetFileList().ToArray();
+            if (currentPak != currentPakToCheck)
+            {
+                MyExtractor = new PakExtractor(Settings.Default.PAKsPath + "\\" + currentPak, Settings.Default.AESKey);
+                myArray = MyExtractor.GetFileList().ToArray();
+            }
 
             string[] results;
             if (currentItem.Contains("."))
@@ -60,6 +65,8 @@ namespace FModel
 
                 AssetPath = WriteFile(currentItem, results[i], b).Replace("/", "\\");
             }
+
+            currentPakToCheck = currentPak;
             return AssetPath;
         }
         public static string AssetToTexture2D(string AssetName)
diff --git a/FModel/Methods/VarApp.cs b/FModel/Methods/VarApp.cs
index 21755a2c..10c84be7 100644
--- a/FModel/Methods/VarApp.cs
+++ b/FModel/Methods/VarApp.cs
@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.IO;
 
 namespace FModel
 {
@@ -10,6 +11,34 @@ namespace FModel
 
         public static Dictionary<string, string> PaksMountPoint { get; set; }
         public static Dictionary<string, string> AllpaksDictionary { get; set; }
+
+        public static string ReadPakGuid(string pakPath)
+        {
+            using (BinaryReader reader = new BinaryReader(File.Open(pakPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
+            {
+                reader.BaseStream.Seek(reader.BaseStream.Length - 61 - 160, SeekOrigin.Begin);
+                uint g1 = reader.ReadUInt32();
+                reader.BaseStream.Seek(reader.BaseStream.Length - 57 - 160, SeekOrigin.Begin);
+                uint g2 = reader.ReadUInt32();
+                reader.BaseStream.Seek(reader.BaseStream.Length - 53 - 160, SeekOrigin.Begin);
+                uint g3 = reader.ReadUInt32();
+                reader.BaseStream.Seek(reader.BaseStream.Length - 49 - 160, SeekOrigin.Begin);
+                uint g4 = reader.ReadUInt32();
+
+                var guid = g1 + "-" + g2 + "-" + g3 + "-" + g4;
+                return guid;
+            }
+        }
+        public static string ReadPakVersion(string pakPath)
+        {
+            using (BinaryReader reader = new BinaryReader(File.Open(pakPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
+            {
+                reader.BaseStream.Seek(reader.BaseStream.Length - 40 - 160, SeekOrigin.Begin);
+                uint guid = reader.ReadUInt32();
+
+                return guid.ToString();
+            }
+        }
     }
 
     class App
diff --git a/README.md b/README.md
index f068811e..bd8ae959 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,7 @@ Also if you find this project useful, feel free to give it a :star: thank you :k
  8. Load difference between current .PAK files and backup file
  9. Load, Extract and Save Assets automatically between current .PAK files and backup file
 ### What i'm using
-  - [Fortnite Asset Parser](https://github.com/SirWaddles/JohnWickParse) - Custom Version With Output Control And No `key.txt`
+  - C# bindings for the [Fortnite Asset Parser](https://github.com/SirWaddles/JohnWickParse)
   - [AutoUpdater.NET](https://github.com/ravibpatel/AutoUpdater.NET)
   - [JSON Parser](https://app.quicktype.io/)
   - [ScintillaNET](https://www.nuget.org/packages/jacobslusser.ScintillaNET)