Yes Spunky, it should be visible in Task Manager.
I don't recommend using Task Manager however because the system often allocates or frees different handles even with the simplest task repeated many times, but it's visible after enabling and disabling a script multiple times.
You should get a much better few at the handles using Nirsoft GDIView at
http://www.nirsoft.net.
Simplest and best solution to any leaks would be running Plus through an application like Deleaker
http://www.deleaker.com however. The trial of this application works for 7 days and having the symbols for Plus, finding the leaks should be a matter of a few minutes in all traversed code.
I'd also like if a Dev could tell me how exactly the popup menu additions are added by Plus and/or a way to go around the extra status changing menu in my script.