

IIS 4.0 was released as part of the "Option Pack" for Windows NT 4.0.IIS 3.0, which was included with Service Pack 2 of Windows NT 4.0, introduced the Active Server Pages dynamic scripting environment.IIS 2.0 was included with Windows NT 4.0.IIS 1.0 was initially released as a free add-on for Windows NT 3.51.Īlmost every version of IIS was released either alongside or with a version of Microsoft Windows: However, since the EMWAC server was unable to handle the volume of traffic going to, Microsoft was forced to develop its own web server, IIS.

The first Microsoft web server was a research project at the European Microsoft Windows NT Academic Centre (EMWAC), part of the University of Edinburgh in Scotland, and was distributed as freeware. Windows XP Home edition), and is not active by default.

It has been an integral part of the Windows NT family since Windows NT 4.0, though it may be absent from some editions (e.g. IIS supports HTTP, HTTP/2, HTTPS, FTP, FTPS, SMTP and NNTP. Internet Information Services (' 2S) is an extensible web server created by Microsoft for use with the Windows NT family.
