Visual Basic is one of these programs that have a windows hierarchy that is quite... strange

The main window is not the visible one, but one that is hidden or something like that; don't add the visible window to the virtual desktop, but the whole VB process (load the Desktops Explorer, right-click the VB6 window you added to your target virtual desktop and choose the "Include all windows" option).

You can automate this process by editing the registry, but I will add this directly in VDT setup. Download the version that I will make available at the end of this week and install it.

Can I close the thread?