joinarray( {dec2hex(toint(rand(4)*256),2), "-", dec2hex(toint(rand(2)*256),2), "-", dec2hex(toint(rand(2)*256),2), "-", dec2hex(toint(rand(2)*256),2), "-", dec2hex(datetext(now(),"yyyy"),3), dec2hex(datetext(now(),"MMdd"),3), dec2hex(datetext(now(),"HHmm"),3), dec2hex(datetext(now(),"SSss"),3)} )