What's wrong with Shersoft and the ActiveListBar?

I have a task to maintain an application that started as a VB6 application and has been ported to .NET 3.5. This application contains several third-party COM controls, one of which is the Shersoft ActiveListBar control. I'm trying to get a couple of new programmers set up to edit this project and we run into a licensing issue and a pop-up message tells us to contact Shersoft ... a company that no longer exists. Does anyone know what happened to the ActiveListBar product if it was bought and sold by another company?

(Yes, I understand what needs to be done is pull the control out of the codebase and replace it with .NET code, but there is no time in the release schedule right now ...)