System Requirements:Windows:Microsoft Windows XP with Service Pack (SP) 2, Windows Server 2003 with SP1, or later operating system500 megahertz (MHz) processor or higher 256 MB RAM3 GB, a portion of this disk space will be freed after installation if the original download package is removed from the hard driveCD-ROM or DVD driveInternet Explorer 6.0 or later, 32 bit browser only1024x768 or higher resolution monitorCertain inking features require running Microsoft Windows XP Tablet PC Editionor later; Speech recognition functionality requires a close-talk microphone and audio output device; Information Rights Management features require access to a Windows 2003 Server with SP1 or later running Windows Rights Management ServicesConnectivity to Microsoft Exchange Server 2000 or later is required for certain advanced functionality in Outlook 2007; Instant Search requires Microsoft Windows Desktop Search 3.0; Dynamic Calendars require server connectivityConnectivity to Microsoft Windows Server 2003 with SP1 or later running Microsoft Windows SharePoint Services or Office SharePoint Server 2007 is required for certain advanced collaboration functionality; PowerPoint Slide Library requires Office SharePoint Server 2007; Connectivity to Office SharePoint Server 2007 required for browser-enabled InfoPath forms and additional collaboration functionality; Groove Messenger integration requires Windows Messenger 5.1 or later or Communicator 1.0 or later; Includes a 5 year subscription to the Groove relay service