Instant Housecall is a fast, easy remote access program that lets you offer remote support through firewalls.

You can transfer files, and easily view and control the remote desktop. To start a session, ask your client to run Instant Housecall then click "Start Session". You'll be connected instantly, and you can instantly provide assistance with no configuration. Instant Housecall includes powerful features like reboot and reconnect, file transfer and chat, session history and notes, multi-monitor support, and Vista/Windows 7 UAC compatibility. This download lets you install the Free Edition for personal use which gives you unlimited connections to up to three clients, or start an unlimited 15-day trial of the Business Edition.