Zkemkeeper.dll working from visual studio but not working on IIS

Question

I'm using zkemkeeper in asp.net mvc project work fine in development but when I publish website on IIS on my device (same computer where development work) zkemkeeper not working and I have error as on bellow

Retrieving the COM class factory for component with CLSID {00853A19- 
BD51-419B-9269-2DABE57EB61F} failed due to the following error: 80040154 
Class not registered (Exception from HRESULT: 0x80040154 
(REGDB_E_CLASSNOTREG)).

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Answer 1

Go to IIS > App Pools Then Select Required App Pool And Goo To Advance Settings And You Find Enable 32bit Applications And Set It to true..