: Restoring navigation history for the internal Steam browser.
: Ability to track playtime for non-Steam games added to the library. MILLENIUM.exe
: While the operating system itself is not a single .exe , many legacy installers or system tools related to this 2000-era OS are labeled with "Millennium". It was famously known for its stability issues and as the last of the MS-DOS-based Windows versions. : Restoring navigation history for the internal Steam