Could not load file or assembly 'Microsoft.Extensions.DependencyInjection.Abstractions using COM
问题 [Recent Note] If it were not for the com-visible aspect, this question would be a duplicate of this question on assembly binding. I had struggled for days because I did not realize that I needed to alter my unit test project as well as the com visible project. If you don't want to read through my struggles realizing this, skip to the last update. [Pre-amble] I feared it may be a bridge to far trying to access a dotnet standard 2.0 library from VB6 via a COM Visible Framework 4.7.2 library,