Do I need a specific edition of my development environment to use ActivVisionTools?
No, Standard or Express Editions are already sufficient for using the full functionality of ActivVisionTools. Buf of course, there may be restrictions on the functionality of the development environment, e.g., Visual C++ 2005 Express supports the creation of Windows Forms applications, but not of MFC applications. Regardless of the edition, you need at least version 6.0 for Microsoft Visual Basic or Microsoft Visual C++.