:script
cd /d %windir%\Microsoft.NET\Framework
echo off
title .NET Framework Check v3
mode 35,8
cls

:set
set v10=Not installed
set v11=Not installed
set v20=Not installed
set v30=Not installed
set v35=Not installed
set v40=Not installed
set v45=Not installed

:check
if exist v1.0* 	set v10=Installed
if exist v1.1* 	set v11=Installed
if exist v2.0* 	set v20=Installed
if exist v3.0*	set v30=Installed
if exist v3.5*	set v35=Installed
if exist v4.0*	set v40=Installed
if exist v4.5*	set v45=Installed

:show
echo .NET Framework v1.0: %v10%
echo .NET Framework v1.1: %v11%
echo .NET Framework v2.0: %v20%
echo .NET Framework v3.0: %v30%
echo .NET Framework v3.5: %v35%
echo .NET Framework v4.0: %v40%
echo .NET Framework v4.5: %v45%

:repeat
pause>nul
goto script