| Subject | English | Chinese simplified |
| comp., MS | extra-bold | 超粗体 (Having a font weight that corresponds to a weight class value of 800 according to the OpenType specification) |
| comp., MS | extra-light | 超细体 (Having a font weight that corresponds to a weight class value of 200 according to the OpenType specification) |
| comp., MS | Extras Library | 附加程序库 (A renaming of the Vista Program Library experience that showcases and allows quick access to installed Media Center Extras) |
| comp., MS | Media Center Extras | 媒体中心附加程序 (A collection of third-party extensibility applications for Windows Media Center) |