LogMeIn: Remote Access and Desktop Control Software for Your Computer
LogMeIn is a suite of software services that provides remote access to computers over the Internet.
LogMeIn remote access products use a proprietary remote desktop protocol that is transmitted via SSL.
An SSL certificate is created for each remote desktop and is used for cryptographically secure communications between the remote desktop and the accessing computer.
The service connects the remote desktop and the local computer using SSL over TCP or UDP and utilizing NAT Traversal techniques to achieve peer-to-peer connectivity when available.
LogMeInPro and LogMeIn Free provide end users remote desktop access with optional remote sound, file management, printer access, and online chat features through a web browser. The LogMeIn Ignition product is an optional add-on that provides access without a web browser.
LogMeIn IT Reach is a system admin tool to help IT professionals maintain computers remotely.
LogMeIn Rescue provides professional help desk personnel remote access to fix problems on an end user's desktop machine. The optional LogMeIn Rescue+Mobile is an add-on that provides remote support to mobile devices.
LogMeIn Hamachi is a separate product that provides remote VPN access. See Hamachi.
LogMeIn Backup is a separate product that provides an online backup service.
source:wikipedia