WinHEC

WinHEC (also known as the Windows Hardware Engineering Conference) is a series of trade shows and workshops hosted by Microsoft, primarily focused on Windows-based hardware. Many demonstrations at WinHEC involved pre-release builds of Windows, including Longhorn build 4015 (2003), 4074 (2004) and 5048 (2005).

WinHEC was a sister event to the Microsoft Professional Developers Conference.