https://en.wikipedia.org/wiki/Microsoft_Comic_Chat
>Microsoft Comic Chat installed a custom font, Comic Sans MS, that users could use in other applications and documents. In 1996 it was bundled with several other fonts in Microsoft's Core Fonts for the Web project and subsequent versions of Microsoft Windows, leading to its notoriety among the internet.
https://chrisgliddon.com/a-trip-down-memory-lane-microsoft-c...
>While Microsoft’s Comic Sans was first introduced in 1995 as part of a Windows 95 Plus Pack, the font was more likely cemented into many people’s minds for one or two reasons: 1) well-meaning, yet not-necessarily-design-savvy educators, and 2) being selected as the default font in a new internet chat application called Microsoft Comic Chat.