Remember while moving application from 32 bit OS to 64 bit OS–:Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

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    • October 16, 2013 at 5:51 AM #26179
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        Below error encounter while moving application from 32 bit OS to 64 bit OS.

        Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))”.

        Solution:

        Change project target platform to *86

         

         

        After changed platform target build and deploy it. If it is wcf service after published to IIS you will get a following error on 64 bit OS

         

         

        If you are hosting any wcf service the apppool which reference the service should run under 32 bit

         

         

        Good Luck…:)

         

         

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