c#: how to call IFIlter in application?

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I'd like to use IFilters to extract text from many filetypes.
It is possible, but:

I cannot call default pdf IFilter in Windows 8 and Windows Server 2012:

glcndFilter.dll

It gives me an error.
Also, Filtdump.exe gives an error on it too:
Failed to CoCreate ILoadFilter instance, hr == 0x80040154
FILTDUMP failed, hr == 0x80040154

In the same time my application can call any other filters.

How to do it?

I want to open file pdf, doc, txt etc in my c# application and extract plain text from the file using IFilter.
Now I can do it for any filetypes but only problem with pdf.
The reason is: Microsoft provides its own IFilter for pdf glcndFilter.dll for Windows 8 and Windows Server 2012. I cannot call this filter (see above).
BUT SQL Server is using this filter on the same machine.

I used this very useful code
https://github.com/Sicos1977/IFilterTextReader[^]