Using COM References after deplyoing on IIS Server


I developed a simple powerpoint conversion (into images) to display them in a caroussel. So I used the


On my devlopment environment it works fine but when I publish it with Azure on my IIS Server, it seems that id does not work.

Exception: System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {91493441-5A91-11CF-8700-00AA0060263B} failed due to the following error: 80040154

Why does it works before the deployment on IIS ? I tried to install powerpoint on the server without succes, could you give me hints ?

asked on Stack Overflow Dec 16, 2020 by Crakenar

1 Answer


Well it was too much of a hassle to use Microsoft COM : HRESULT_FAIL + Not all clients have Office + Office Server etc

so I just use this :

Free Trial can be used multiples times or you can get a licence key for free.

answered on Stack Overflow Apr 26, 2021 by Crakenar

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