This will launch the Instant Messaging application.

Initially the technicians will only be able to text chat (Instant Message) with you until YOU decide to commence the session and click Yes.

At that point you are able to watch what they're doing, text chat with the support staff and naturally you can terminate the remote session any time you wish. You can either end just the remote control by clicking on 'End Desktop Sharing' or end the entire session by clicking on 'Disconnect'.

As well as being more convenient, remote support is also more secure than dropping off your computer to be serviced by a technician who you can't watch over while they're working or having someone come to your house and leaving them alone with your computer.