Latest questions about "program information"

I have no idea what this program is or what it's for? Can anybody tell me?

Thank you for your detailed response Stephen. I have Piriform CCleaner (free edition) installed on 3 laptops and 2 desktops.

I have installed the tool and the software runs, but there are no instructions as to which keys to use to indicate a correct answer.

Does Del Mp3 Karaoke have a 12 or 13 step pitch adjustment, and does it have a tempo adjustment option? Does it also have the ability to block voice or selected instruments?

I downloaded XDA Developers on HTC T-Mobile G2 but now I am not able to register because I don't have a 'regular' computer. I am in a 'nursing home' in Yonkers, N.