Source : Free On-Line Dictionary of Computing

Internet Information Server
     
         (IIS) {Microsoft's} {web server} and {FTP
        server} for {Windows NT}.
     
        IIS is intended to meet the needs of a range of users: from
        workgroups and departments on a corporate {intranet} to {ISPs}
        hosting {web sites} that receive millions of {hits} per day.
     
        Features include innovative web publishing, customisable
        tools, {wizards}, customisable management tools, flexible
        administration options, and analysis tools.
     
        IIS makes it easy to share documents and information across a
        company intranet or the {Internet}, and is completely
        integrated with {Windows NT Directory Services}.
     
        IIS 1.0 was released for {Windows NT 3.51} and had a limited
        feature set.
     
        IIS 2.0 was released with {Windows NT 4.0} with a similar
        feature set to IIS 1.0.
     
        IIS 3.0 quickly followed with many additions including
        {Active Server Pages} (ASP), {ISAPI} and {ADO} 1.0.
     
        IIS 4.0 is built into {Windows NT Server 4.0}.  It includes
        ASP 2.0, ISAPI and ADO 1.5.
     
        {Home (http://www.microsoft.com/iis)}.
     
        Rival servers include {Apache} and {Netscape Enterprise
        Server}.
     
        (1999-08-04)