With Microsoft® Windows Vista™, Microsoft introduces a new color management infrastructure designed to foster innovation over then next decade. The Windows Color System (WCS) establishes a new “smart CMM/simple profile” CMS model with a transparent, modular, and extensible architecture. WCS provides native support for high dynamic range, wide gamut, high bit-depth (“high, wide, and deep”) color. WCS also provides continuing, enhanced support for ICC-based color management, providing seamless interoperability between ICC and WCS profiles and transforms.
Michael Bourgoin, "The Windows Color System – Evolution in the Microsoft Color Management Ecosystem" in Proc. IS&T 13th Color and Imaging Conf., 2005, pp 135 - 135, https://doi.org/10.2352/CIC.2005.13.1.art00026