Yes, you can create an ActiveX control in CVI 6.0
CVI can be used in two ways with ActiveX, as both a server (for example CVI provides a type library which allows LabVIEW to control it) and a client (CVI takes an existing type library of Access, allowing you to call Methods and Properties of Access from within your CVI project).
To make CVI the server, in the project window, go to the menu bar and select TOOLS >> CREATE ACTIVEX SERVER. A wizard will guide you through the rest of the setup process.
To make CVI a client, go to TOOLS >> CREATE ACTIVEX CONTROLLER. Again a wizard will appear. Follow the instructions, and an instrument driver will be created for you. This instrument driver, when loaded into your project, will allow you to control the methods
and properties called on your external application.