topic Re: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/class-not-registered-exception-from-hresult/m-p/138319#M3575 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><SPAN> Try to set the target platform as x86 and then compile and run the project</SPAN><BR /><BR /><BR /><SPAN>Thanks</SPAN><BR /><SPAN>Nikhil</SPAN></BODY></HTML> Tue, 10 May 2011 09:45:05 GMT nikhilsastikar 2011-05-10T09:45:05Z Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) https://community.esri.com/t5/arcobjects-sdk-questions/class-not-registered-exception-from-hresult/m-p/138318#M3574 <HTML><HEAD></HEAD><BODY><SPAN>Hi</SPAN><BR /><BR /><SPAN>I'm migrating an application written using VB6 and ArcObjects to .NET</SPAN><BR /><BR /><SPAN>After a machine rebuild, the application started to fail with the above error when OnCommand_OnClick is executed.</SPAN><BR /><BR /><SPAN>The project properties Complie tag has the target machine set as X86.</SPAN><BR /><BR /><SPAN>I have tried to register associated DLLs using Regsvr32 but this results in </SPAN><BR /><SPAN>"****.dll was loaded, but the DllRegisterServer entry point was not found. This file can not be registered"</SPAN><BR /><SPAN>I have also ran (again) the regasm utility on the main DLL but still get the above message.</SPAN><BR /><BR /><SPAN>Any help would be much appreciated</SPAN><BR /><SPAN>Ian</SPAN></BODY></HTML> Thu, 17 Mar 2011 12:24:44 GMT https://community.esri.com/t5/arcobjects-sdk-questions/class-not-registered-exception-from-hresult/m-p/138318#M3574 IanShephard 2011-03-17T12:24:44Z Re: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) https://community.esri.com/t5/arcobjects-sdk-questions/class-not-registered-exception-from-hresult/m-p/138319#M3575 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><SPAN> Try to set the target platform as x86 and then compile and run the project</SPAN><BR /><BR /><BR /><SPAN>Thanks</SPAN><BR /><SPAN>Nikhil</SPAN></BODY></HTML> Tue, 10 May 2011 09:45:05 GMT https://community.esri.com/t5/arcobjects-sdk-questions/class-not-registered-exception-from-hresult/m-p/138319#M3575 nikhilsastikar 2011-05-10T09:45:05Z