Verdana
Microsoft's new Verdana typeface family consists of four TrueType fonts created specifically to address the challenges of on-screen display. Designed by world renowned type designer Matthew Carter, and hand-hinted by leading hinting expert, Monotype's Tom Rickner, these sans serif fonts are unique examples of type design for the computer screen. (Copied from Microsoft's Typography site).

Download Verdana for
Windows 95 & Windows NT [verdan32.exe: 321KB, self installing file]
Windows 3.1 & Windows 3.11 [verdana.exe: 162KB, self extracting archive]
Apple Macintosh [Verdana.sit.hqx: 208KB, BinHex].

For more information about Verdana see Microsoft's Channel Verdana page.