DVR-MS component introduced in Windows XP Service Pack 1. The DVR feature of Windows XP Media Center Edition, Windows Vista and the Windows 7 version of Windows Media Center create files in this format. If a recorded broadcast is marked as copy protected, the resultant DVR-MS file can only be played back on the recording device. Unprotected DVR-MS files (files not marked in this way) can be played back on any device running Windows XP with Service Pack 1 or later Windows operating systems, hotfix 810243 for Windows XP RTM (which adds DVR-MS support to DirectShow), and on Windows Mobile 6.
Windows 9x Windows 9x Windows 9x is a generic term referring to a series of Microsoft Windows computer operating systems produced from 1995 to 2000, which were based on the Windows 95 kernel and its underlying foundation of MS-DOS, both of which were updated in subsequent versions. This includes all versions of Windows 95 and Windows 98. Windows ME is sometimes included. Windows 9x is predominantly known for its use in desktops. In 1998, Windows made up 82% of operating system market share. Internal release versions for versions of Windows 9x are 4.x. Previous MS-DOS based versions of Windows used version numbers