This article describes a simple, free, easy to install Search page written in C#. The goal is to build a simple search tool that can be installed simply by placing three files on a website, and that could be easily extended to add all the features you might need for a local-site search engine.

There are two main parts to a Search engine:

• the build process, which processes files, indexing their contents and creating the 'catalog'.
  
• the search process, which uses the 'catalog' to find the search term and the names of the files it appears in.

This code 'builds' the catalog by traversing the file-system from a starting directory, it does not request web pages via HTTP or parse the pages for internal links. That means, it's only suitable for static websites.

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