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

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hi all,
i m trying to run my project but one form is not open and above error is occurred...but that form is run on another machine..i don't know how to solve the problem and why that error is come....plz help...i am also find out the solution....

Posted 26-Jun-13 3:00am

gkelkar

Updated 6-Jul-20 3:32am

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[no name] 26-Jun-13 9:10am

You are trying to use a COM control that is not registered.

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Mahesh Bailwal · Accepted Answer · 2013-06-26T03:21:00

From the error, it looks like your application is using some sort of COM object that is not installed /registered on the machine on which you are getting error.

For troubleshooting you can look into source code of form, try to find out what COM object its trying to create, which is causing issue. Then install required COM object on machine .

Use following links fro reference
Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))[^]
I'm getting this error when I'm using COM reference in winform[^]

blackus · Accepted Answer · 2014-05-29T20:24:00

Solution 2

Please set the project platform target to x86. Since most of the COM you may be using in your project was built on x86. Project Properties-->Build-->Target Platform-->x86

Posted 29-May-14 20:24pm

blackus

Updated 29-May-14 20:27pm

v2

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

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

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