Copy and paste this into notepad.
Save the file as .bat
cd C:/Users/%username%
for /f "delims=" %%x in ('dir /s /od /b OSBot*.jar') do set recent=%%x
java -jar "%recent%" -allow lowresource,lowcpu -login Username:Password -bot username:password:pin -proxy ip:Host
echo %recent%
pause
You can of course choose the ones you want. Delete proxy if you don't want to use it. You can add more as you like also