IFilters are components that allow search services to index content of specific file types, letting you search for content in those files. They are intended for use with Microsoft Search Services or MS Indexing Service (only supported on windows 2008 r2 and before)

General Ifilter Installation Instructions:
1. Stop Windows Search / Indexing Service service
2. Uninstall any previous version of IFilter if any.
3. Install the Ifilter it's install package,and its spesific instructions.
4. After the installation completes, start Windows search / Indexing service.
5. Re-index your warehouse.

Microsoft Office Filter Packs

Install this product if you want to search for content in the file types listed below.
The Filter Pack includes:
Legacy Office Filter (97-2003; .doc, .ppt, .xls)
Metro Office Filter (2007; .docx, .pptx, .xlsx)
Zip Filter
OneNote filter
Visio Filter
Publisher Filter
Open Document Format Filter

Strict Open XML Spreadsheets are not supported for processing by these IFilters

Download from microsoft web site

Adobe PDF IFilter

This Filter Pack includes IFilters for the following formats: .pdf

Download PDF iFilter from Adobe web site