Dates for specific Windows Logo Program requirements are defined on the web at http://www.microsoft.com/winlogo/hardware/.
Windows Logo Program requirements become effective in these ways:
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Operating System Support. Some requirements become part of the Windows Logo Program based on features in the operating system that the manufacturer preinstalls on the system.
For example, OnNow power management and multiple monitor support became Windows Logo Program requirements a few years ago when new support was introduced in Windows operating systems. These types of requirements depend on which operating system is preinstalled on the system. For example, in past years, a system with Windows NT 4.0 preinstalled was not required to fully support Windows Driver Model (WDM) requirements.
Another example is support for legacy-free designs, first introduced in the Windows 2000 and Windows Me operating systems. For this example, the OEM can choose whether to build legacy-free designs; however, if implemented, the system must meet the specific Windows Logo Program requirements for such systems.
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