Fixes for dummy python.exe

MakeInstall.bat

@@ -50,7 +50,7 @@ goto checkpy
 
 :checkpy
 REM Get python location
-FOR /F "tokens=* USEBACKQ" %%F IN (`where python 2^> nul`) DO (
+FOR /F "tokens=* USEBACKQ" %%F IN (`python -V 2^> nul`) DO (
     SET "python=%%F"
 )
 
@@ -200,8 +200,8 @@ exit /b
 REM Python found
 cls
 if "%*"=="" (
-    "!python!" "!thisDir!!script_name!"
+    python "!thisDir!!script_name!"
 ) else (
-    "!python!" "!thisDir!!script_name!" %*
+    python "!thisDir!!script_name!" %*
 )
 goto :EOF