diff --git a/gui/main_window.py b/gui/main_window.py
index 7c90689..48ad413 100644
--- a/gui/main_window.py
+++ b/gui/main_window.py
@@ -19,8 +19,8 @@ from tweaks.tweaks import tweaks
 from tweaks.custom_gestalt_tweaks import CustomGestaltTweaks, ValueTypeStrings
 from tweaks.daemons_tweak import Daemon
 
-App_Version = "5.0.2"
-App_Build = 0
+App_Version = "5.0.3"
+App_Build = 1
 
 class Page(Enum):
     Home = 0
diff --git a/requirements.txt b/requirements.txt
index d8a73dd..ea89fba 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 pymobiledevice3
 PySide6-Essentials
 PyInstaller
+rarfile
\ No newline at end of file
diff --git a/tweaks/posterboard_tweak.py b/tweaks/posterboard_tweak.py
index 388e355..d33961b 100644
--- a/tweaks/posterboard_tweak.py
+++ b/tweaks/posterboard_tweak.py
@@ -1,5 +1,6 @@
 import os
 import zipfile
+import rarfile
 import uuid
 import re
 from random import randint
@@ -182,7 +183,16 @@ class PosterboardTweak(Tweak):
         for tendie in self.tendies:
             zip_output = os.path.join(output_dir, str(uuid.uuid4()))
             os.makedirs(zip_output)
-            with zipfile.ZipFile(tendie.path, 'r') as zip_ref:
-                zip_ref.extractall(zip_output)
+            if os == 'nt':
+                rar_archive = rarfile.RarFile(tendie.path)
+                try:
+                    # Extract the contents to the target directory
+                    rar_archive.extractall(path=zip_output)
+                finally:
+                    # Close the RAR file to release resources
+                    rar_archive.close()
+            else:
+                with zipfile.ZipFile(tendie.path, 'r') as zip_ref:
+                    zip_ref.extractall(zip_output)
         # add the files
         self.recursive_add(files_to_restore, curr_path=output_dir)