Updated mset9.bat to Install Python

MSET9_installer_script/mset9.bat

@@ -1,12 +1,34 @@
-@echo off
-chcp 65001 > nul
-py -V > nul
-if %errorlevel% NEQ 0 (
-    echo Python 3 is not installed.
-    echo Please install Python 3 and try again.
-    echo https://www.python.org/downloads/
-    echo.
-    pause
-    exit
-)
-py -3 mset9.py
+@echo off
+chcp 65001 > nul
+
+py -V 2> nul
+if %errorlevel% EQU 0 py -3 mset9.py
+python -V 2> nul
+if %errorlevel% EQU 0 python -3 mset9.py else (
+    echo Python not found. Do you want to install it? (yes or no)
+    set /p pyPrompt="> "
+    set confirm=F    
+
+    if %PyPrompt% EQU y set confirm=T
+    if %PyPrompt% EQU yes set confirm=T
+
+    if %confirm% EQU T (
+      cls
+      echo Downloading...
+
+      ver | findstr "6.1" > nul & :: 6.1 = Windows 7
+      if %errorlevel% EQU 0 (
+        powershell -Command "(New-Object Net.WebClient).DownloadFile('https://www.python.org/ftp/python/3.8.10/python-3.8.10.exe', 'python.exe')"
+      ) else (
+        powershell -Command "Invoke-WebRequest https://www.python.org/ftp/python/3.12.2/python-3.12.2-amd64.exe -OutFile python.exe"
+      )
+
+      echo  Done & echo Installing...
+      python.exe /quiet PrependPath=1
+      del python.exe & echo  Done
+      start cmd /K py %cd%\mset9.py
+      exit
+    ) else (
+      exit
+    )
+)