Welcome to IFilter.OrgThis site is dedicated to helping you find the IFilter information you are looking for. Most likely, you are looking for the links to free ifilters.
What are IFilters?If you are using Windows Vista's search feature, you need IFilters. IFilters allow the indexer to read different file formats. Without an appropriate IFilter, the file contents will not be indexed, and when you search for those contents, you won't find anything!
The same IFilters also work with Microsoft Search Server 2008, Windows Desktop Search, SharePoint, SQL Server (full-text search) and Windows Indexing Service. So, pretty much anywhere Microsoft dabbles in document management and search technologies, IFilters are useful.
Read the Frequently Asked Questions for more info.