Compact Web Server is a free, open source Microsoft.NET Compact Framework/ASP web server software for Windows Mobile 5.0 based Pocket PC devices for non commercial usage.
The software allows you to host and share static web sites/web pages (for example .html, .htm) or dynamic web sites (.aspc: Active Server Pages Compact). You can write your own extensions to provide data dynamically by loading it from a database or any other data source. You can do anything thats possible with .NET compact framework.

Download Link- http://www.chilisoftware.net/CompactWebServer/cwbsvr.zip

Requires Microsoft .NET framework for Windows Mobile PPC.