c# - HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))

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System.Runtime.InteropServices.COMException was unhandled Retrieving the COM class factory for component with CLSID {FBF5715D-A05D-11D4-A64C-0008C711C8C1} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Also, in the Project Properties the Option for Register For COM Interop is disabled.

I tried both of the solutions suggested below to no avail. Does anyone have another idea? – Bob Avallone Aug 15, 2013 at 14:10

This could also be an issue of building the code using a 64 bit configuration. You can try to select x86 as the build platform which can solve this issue. To do this right-click the solution and select Configuration Manager From there you can change the Platform of the project using the 32-bit .dll to x86

I had the same problem in reverse - I needed a 64 bit project,


    Any CPU

and

x32

didn't work. – Mark Ransom Jan 26, 2015 at 15:41 I couldn't believe changing from 'Any CPU' to 'x86' would make all the difference but it did! – Jon Comtois May 17, 2015 at 22:25

Just looking at the message it sounds like one or more of the components that you reference, or one or more of their dependencies is not registered properly.

If you know which component it is you can use regsvr32.exe to register it, just open a command prompt, go to the directory where the component is and type regsvr32 filename.dll (assuming it's a dll), if it works, try to run the code again otherwise come back here with the error.

If you don't know which component it is, try re-installing/repairing the GIS software (I assume you've installed some GIS software that includes the component you're trying to use).

I have an .exe (not .dll). From the Visual Studio Cmd prompt (where the .exe is located) I ran "MyProgram.exe /regsvr" – robor Nov 4, 2013 at 9:04

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