Supported Operating Systems: Windows 2000 Service Pack 4; Windows Server 2003 Service Pack 1; Windows Server 2003 Service Pack 1 for Itanium-based Systems; Windows Server 2003, Standard x64 Edition; Windows XP Media Center Edition; Windows XP Professional x64 Edition ; Windows XP Service Pack 1; Windows XP Service Pack 2; Windows XP Tablet PC Edition
• Microsoft® Outlook® 2000, Microsoft® Outlook® XP, or Microsoft® Outlook® 2003 messaging and collaboration clients required for synchronization to the desktop or portable computer of e-mail, calendar, contacts, tasks, and notes. (Outlook 2003 is recommended)
• Microsoft® Office 2000, Microsoft® Office XP or Microsoft® Office 2003
• Microsoft® Internet Explorer 6.0 or later (required)
• Microsoft® Systems Management Server 2.0
The following mobile device operating systems are supported by ActiveSync 4.2:
• Microsoft® Windows Mobile® 5.0
• Messaging and Security Feature Pack for Microsoft® Windows Mobile® 5.0
• Microsoft® Windows Mobile® 2003 Second Edition
• Microsoft® Windows Mobile® 2003
• Microsoft® Pocket PC 2002, Microsoft® Windows® CE OS version 3.0
• Microsoft® Smartphone 2002, Microsoft® Windows® CE OS version 3.0