How to start a system “beep”, from the built-in pc speaker, using a batch file?

Question

I have written a batch script in an interactive mode, for making some tasks.

Sometimes, These tasks takes a long time to be finished, and then the batch asks if the

Answer 1

This works for me..

there was a special character in line 4 which stackoverflow was omitting, code's pasted here: hashb.in/long

and line 4 and 5 can be used interchangeably ofcourse.