Built on NT technology, Windows 2000 Professional offers rock-solid reliability and improved manageability that simplify desktop management. And its integrated Web capabilities and broad support for mobile computers and hardware devices make it easy for business users to connect to the Internet and work anywhere, anytime. Windows 2000 Professional is built upon the rock-solid reliability of Windows NT technology, which makes it significantly more reliable than either Windows 95 or Windows 98 technology. Reliability improvements in Windows 2000 Professional make it even more stable than Windows NT Workstation. Windows 2000 Professional offers high system uptime, dynamic system configuration and resilience to application failures. The support for standards-based security in Windows 2000 Professional protects corporate data in stand-alone and networked environments. Windows 2000 Professional offers a set of built-in tools that make it easier to deploy and manage. In addition, Windows 2000 Professional offers an intelligent user interface that adapts to the way users work thereby making the users more efficient. Windows 2000 Professional extends the capability of notebooks through support for Advanced Configuration and Power Interface (ACPI), Smart Battery and Advanced Virtual Private Network (VPN). It enables users to work anywhere, anytime through support for offline folders and files. The improved hardware support in Windows 2000 Professional includes support for the latest hardware standards, including Universal Serial Bus (USB), Infrared Data Association (IrDA), and IEEE 1394. Windows 2000 Professional is designed to make it easier for organizations to embrace the Internet. The built-in Internet Explorer (IE), a tightly integrated browser, provides users with a faster and richer Internet experience. With support for Dynamic HTML (DHTML) and Extensible Markup Language (XML), it offers a powerful platform for developers to create highly scalable end-to-end e-commerce and line-of-business web applications OEM OEM, or Original Equipment Manufacturer, software is completely electronic, there are no manuals or retail boxes to manufacture and distribute - All you recieve is the CD-ROM of the software, except in the case of operating systems - where you recieve a small start-up guide. Keep in mind that the entire users manual is installed onto your computer during the software's installation process. This electronic manual is stored in the "Help" section, just as you see along the drop down menus of the Internet Explorer or Netscape Navigator browser you are using right now. It has a complete index, searchable index, and sections that you can print out. The help menus have been so descriptive that customers who have purchased the software with manuals, end up hardly using them. OEM products are sold with hardware, in order to abide with the license agreements established by the software manufacturers.