By default any third-party library is upgraded to .NET using a “COM-Interop” wrapper around the original VB6 library. This process generates a .NET library with an equivalent behavior to the original one as well as a quick and smooth conversion process, but using a legacy component in the back of the managed code wrapper.
All the particular code techniques and patterns found in your code can be described into the Visual Basic Upgrade Companion’s core, including the ability to add or fine-tune existing support for ActiveX controls and libraries.
