here a little example how the progressbar looks literary \"in progress\":
alias testprog {
var %y 1, %max $findfile(C:\,.,0,2)
while (%y <= %max) {
echo -s File %y $+ : $findfile(C:\,.,%y,2)
prog $round($calc( %y * (100 / %max )),0)
inc %y
}
.timer 1 1 prog -c
}