.net 3.5 COM loading 4.5.2 assembly

Question

I have a C++ exe file. It created a .Net 3.5 based COM object, which needs to load a .Net 4.5.2 assembly.

I tried creating a manifest file in the COM object project to specify:

<clrClass
   name="ComAssembly.MyClass"
   clsid="{67975F17-3D44-38C1-BC2C-B58E50A481F6}"
   runtimeVersion="v4.0.30319.34000"
   threadingModel="Both"
 />

but I'm still getting error 8013101b (assembly is built by a new runtime ...)

How to do it correctly?

Answer 1

I ended up changing the value of the registry RuntimeVersion value for the COM class InprocServer32 and InprocServer32\\1.0.0.0. It works fine with v4.0.30319.34000