Ben is Chairman and Co-Founder of DreamBox Learning. He previously served on the Advisory Board of UIEvolution (acquired by Square Enix) and as a Director of TeachFirst, Vizrea, GroundSpring.org. Ben spent 14 years at Microsoft, where he worked on OS/2, MS-DOS 6, Windows 95, the Java VM, and MSN. He started the Internet Explorer team in 1994 and led it through the release of IE version 3.0 in 1996. IE 3.0 beat Netscape 3.0 in press reviews and achieved 30% market share by the time IE 4.0 released in 1997. Ben installed Microsoft's first production LAN in 1985, proposed the FAT32 file system in 1990, led the team that wrote the Win32 API specification in 1991, and started and led the team that created CAB software distribution files in 1993. His work at Microsoft resulted in 18 issued U.S. patents. Ben also worked brief stints at Amazon and IBM.