COMServerDemo Sample not show in VBA

Hey,
I did everything in this address :
[https://docs.microsoft.com/en-us/dotnet/core/native-interop/expose-components-to-com](url)

When i register my DLL with command below, It will show success message :
`regsvr32 "D:\CoreComTest\bin\Debug\netcoreapp3.1\CoreComTest.comhost.dll"`

But after i open Word or Excel i can't see my dll in references.

So i download the sample in address :
[https://github.com/dotnet/samples/tree/main/core/extensions/COMServerDemo](url)

I build the server project and used the command below :
`regsvr32 "D:\COMServerDemo\COMServer\bin\Debug\netcoreapp3.1\COMServer.comhost.dll"`
Like my sample it says Success, But after i tried to use it in Excel or Word still i can't see COMServer in references.

I tested both project (CoreComTest and COMServer) in .Net 5 too but still the same, Success msg in regsvr32 but not show in VBA.