Yahoo! Messenger allows you to quickly exchange messages with your online friends. Unlike e-mail, instant messages appear as soon they're sent. By downloading theapplication to your computer, you can send instant messages. Other features include voice chat, file transfer, mail and stock quote alerts, sports scores, news, and much more. Licence: Freeware.

Vista Manager is a system utility that helps you to optimize and tweak, clean up your Windows Vista. It will increase you system speed, improve system security and suit your idea. You will need  installed. Licence: Shareware.