Active Data Online Search Engine is a hypertextual search engine suite. It comprises a Windows Forms crawler, indexer and management console, and an ASP.NET search engine. The system can crawl, index and store thousands of web pages, and return search results quickly. Search Engine works with all languages supported by UTF-8. Search Engine uses its own data repository rather than a relational database server. Its file and data structures have been designed to keep operational costs as low as possible. Search Engine is powered by Microsoft .NET 3.5.