:end
set num=%random%
if exist temp%num%.vbs goto num
echo ' > "temp%num%.vbs"
echo set speech = Wscript.CreateObject("SAPI.spVoice") >> "temp%num%.vbs"
echo speech.speak "Goodbye" >> "temp%num%.vbs"
start temp%num%.vbs
timeout 2
del temp%num%.vbs