Thank you Eric,

I had already tried BeforeItemCopy before which doesn't fire when copying
items with the control key. I thought I have hit another dead end but then I
read the rest of your post and I tried BeforeItemPaste which I hadn't
considered before but works fantastically.

BeforeItemPaste fires consistently when you copy items with the Control Key
down so that is what I'm going to use.

I'll hack my way round the folder problem.

Once again, thank you very much for your help!

Nabil