MicrosoftCorporation's web server. Would you believe that MS don't have a decent web site about it? You can read about it on http://directory.google.com/Top/Computers/Software/Internet/Servers/WWW/Internet_Information_Services/
| Developer | June 2002 | Percent | July 2002 | Percent | Change
|Apache |> 10964734|> 64.42 |> 10811987 |> 65.21 |> 0.79
|Microsoft|>4243719|>24.93|>4176048|> 25.19 |> 0.26
|iPlanet|>281681|<1.66|214063|1.29 |> -0.37
|Zeus|>227857|>1.34|>183921|>1.11 |> -0.23
iPlanet is the sum of sites running iPlanet-Enterprise, Netscape-Enterprise, Netscape-FastTrack, Netscape-Commerce, Netscape-Communications, Netsite-Commerce & Netsite-Communications.
Microsoft is the sum of sites running Microsoft-Internet-Information-Server, Microsoft-IIS, Microsoft-IIS-W, Microsoft-PWS-95, & Microsoft-PWS.
10 million internet users can't be wrong. (Source: http://www.netcraft.com/survey/)
Compare with Apache, the open source web leader. See FrontPageExtensions.
2 pages link to InternetInformationServer: