• Filter Central

    Indexing pdf documents with Adobe Reader v.8 and MOSS 2007

    • 82 Comments
    The version 8 of the adobe reader has some significant architectural changes (for the better of course) including an inbuilt IFilter to index PDF documents. Previously the adobe IFilter was available as a seperate download. This new change in architecture...
  • Filter Central

    Long awaited 64-bit PDF IFilter finally available.

    • 36 Comments
    Finally we have a 64 bit PDF IFilter - surprisingly the solution is not from Adobe or Microsoft, but from a company called Foxit Software.The IFilter is compatiable with the following Microsoft products: Windows Indexing Service, MSN Desktop Search, Internet...
  • Filter Central

    Recent IFilter implementation and deployment questions.

    • 102 Comments
    Please post your questions and comments about using, implemnting and deploying IFilters to work with Microsoft Search Products here. If deemed necessary, the discussion topics of broader interest will be sorted into seperate threads.
  • Filter Central

    DWG (Autocad) Filter is now available.

    • 26 Comments
    I'm pleased to announce that after a lot of trails and tribulations, the DWG IFilter is finally ready. Those who have been following the posts by Marco and myself under Chronicles of an IFilter development must be curious to know as to what the end result...
  • Filter Central

    MS Filter Pack released !

    • 66 Comments
    I'm pleased to announce that after months of blood, sweat and toil, the MS Filter Pack is finally available !!! The package can be downloaded from : http://www.microsoft.com/downloads/details.aspx?FamilyId=60C92A37-719C-4077-B5C6-CAC34F4227CC&displaylang...
  • Filter Central

    FOXIT vs. Adobe PDF IFilter [ 32-bit only ]

    • 16 Comments
    Sometimes back I had the chance to run a performance and international sufficiency analysis on the Adobe and FOXIT ifilters for some of our customers. The following report is now made available for a broader audience. PERFORMANCE ANALYSIS OF 32...
  • Filter Central

    Indexing XPS documents with MOSS 2007

    • 15 Comments
    With the XML Paper Specification (XPS) document format gaining popularity, many are wondering how to integrate MOSS 2007 to index and search XPS documents. Here's a quick recipe to configure your index server to crawl and catalog tokens in XPS documents...
  • Filter Central

    Registering third party IFilters in WSS/MOSS 2007

    • 22 Comments
    STEP 1: COM REGISTRATION 1.Add Registry key: HKEY_CLASSES_ROOT\CLSID\<ComClassIdOfTheIFIlter\InprocServer32 Default : <IFIlterDllPath> ThreadingModel : Both STEP 2 : REGISTER IFILTER WITH OS There are 4 steps to registering the filter...
  • Filter Central

    Chronicles of an IFilter development - inception to deployment.

    • 55 Comments
    I often asked myself the question - How do independent vendors develop IFilters for MS Search Products and what are the challanges they face? It occurred to me that if I could somehow document the development lifecycle of an IFilter developed by someone...
  • Filter Central

    MS Office 2010 Filter Pack released !

    • 7 Comments
    I’m pleased to announce that Microsoft Filter Pack, a single point-of-distribution for Office 2010 Ifilters is now available for download from the following link : http://www.microsoft.com/downloads/details.aspx?familyid=5CD4DCD7-D3E6-4970-875E...
  • Filter Central

    Co-existence of 32 bit and 64 bit IFilter binaries in MS Search Products.

    • 11 Comments
    Over the last few months we've seen numerous questions from consultants and customers alike on: 1. Why are certain IFilter binaries not available in BOTH 32 bit and 64 bit incarnations? 95% of the questions in this category pointed to the unavailability...
  • Filter Central

    Extending SQL Server 2005 full text search with custom IFilters and IWordBreakers.

    • 2 Comments
    Shajan, one of our development leads, wrote this wonderful article about integrating custom IFilters and IWordBreakers to extend SQL Server Full-Text search. The article describes authoring and installing Filters and Wordbreakers for SQL Server 2005....
  • Filter Central

    Debugging IFilters in MOSS/WSS.

    • 6 Comments
    The steps we use to debug searchfilters with MOSS/ WSS are listed below: 1. Disable filter host termination, add Assert to suspend filter host when it starts: MOSS [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\12.0\Search\Global\Gathering...
  • Filter Central

    64-bit support for Adobe PDF IFilter finally available.

    • 10 Comments
    Finally Adobe has come up with an interim solution to address the non-availability of a 64 bit ifilter. Now one can use the 32-bit Adobe IFilter on 64-bit platforms after installing a DCOM addin from Adobe. The installation instructions can be found on...
  • Filter Central

    Insights into MS IFilter Testing Strategy.

    • 3 Comments
    Ever since I started dealing with filters, I've seen numerous questions regarding "What does the proper validation of an IFilter mean? What tests should we execute and how to excute them?" . Hence, its only appropriate that we publish a document detailing...
  • Filter Central

    Errata for Filter Pack KB .

    • 7 Comments
    This correction applies to both Office SharePoint Server 2007 and Search Server 2008. 1.In step 2, the correct registry key to set the CLSID of the filter is : HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\12.0\Search\Setup\ContentIndexCommon...
  • Filter Central

    Debugging IFilters with WDS 3.0 and Windows Vista.

    • 6 Comments
    With the public release of Vista a week back, soon developers will be wondering how to write and debug IFilters in the vista environment. Here's a quick and easy way, in addition to the one stated by Marco under Chronicles of an IFilter development -...
  • Filter Central

    Adobe releases a 64-bit IFilter

    • 8 Comments
    Adobe has finally released a true 64 bit version of the pdf ifilter. Adobe has successfully tested the filter on the following platforms : Environment Operating System Application Desktop Windows XP x64 SP2 * Windows...
  • Filter Central

    Breaking the monolithic Filter dll.

    • 5 Comments
    An issue came up recently where the architecture of one of our filters had to be changed. The change involved making the filter dll dependent on a few other dlls dropped during the installation process. As with all revolutionary changes, the Search...
  • Filter Central

    Displaying PDF icons in search results

    • 2 Comments
    I received some questions today on how to display the pdf icons in search results. After you can index pdf documents (installing the pdf ifilter, bouncing the search service and all that good stuff), please use the instructions on the blog given below...
  • Filter Central

    Welcome !

    • 7 Comments
    Welcome to Filter Central ! Here you'll find resources, examples and discussions pertaining to the IFilter COM interface, the de facto standard for creating document filters to work with Windows Indexing service, Windows Desktop Search and Microsoft Sharepoint...
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