Thanks for the quick responses.
I’m talking about opening a project by drag-drop, not just opening.
When there are already running Vegas processes available, I don’t double-click on the project and run new copies of Vegas because reusing the already running processes is faster and wiser with memory usage.
Drag-drop opening used to be very handy for me for quick-opening projects listed in a Windows Explorer search results. since it’s disabled, now I have to work like you mentioned above, running a new process for each project.
I think it’s a tiny detail and won’t bother many, but it slows down my work. I don’t know how many of you even noticed it’s gone but I want the drag-drop opening function back.