Receiving an error while try to register DLL with RegAsm.exe: "Could not load file or assembly 'System.Runtime, Version=8.0.0.0, Culture=neutral ,..."

Question

I try to register DLL with RegAsm.exe but I receive this error:

RegAsm : warning RA0000 : Registering an unsigned assembly with /codebase can cause your assembly to interfere with other applications that may be installed on the same computer. The /codebase switch is intended to be used only with signed assemblies. Please give your assembly a strong name and re-register it.> RegAsm : error RA0000 : Could not load file or assembly 'System.Runtime, Version=8.0.0.0, Culture=neutral, PublicKeyToken=...' or one of its dependencies. Reference assemblies should not be loaded for execution. They can only be loaded in the Reflection-only loader context. (Exception from HRESULT: 0x80131058) Lately I upgraded my project to latest .net8. I installed ASP.NET Core Runtime 8.0.1 and .NET Desktop Runtime 8.0.1.

I need to register this DLL in order to use it locally for another product that requires it. what can I do?

Answer 1

Lately I upgraded my project to latest .net8. I installed ASP.NET Core Runtime 8.0.1 and .NET Desktop Runtime 8.0.1.

Regasm.exe is used to register a COM Server hosted in a .Net Framework class library. A properly written COM server hosted in .Net class library should be registered with regsvr32.exe