Windows Live Mesh (PN)~ A -€œsoftware-plus-services-€? platform and experience that enables PCs and other devices to -€œcome alive-€? by making them aware of each other through the Internet enabling individuals and organizations to manage access and share their files and applications seamlessly on the Web and across their world of devices. Windows Live Messenger (PN)~ An instant messaging and video chat service designed for a consumer audience (not for the enterprise). Messenger is available via a desktop app on the web (no installation needed) and on mobile devices.