Oh, your trying to open a context menu and then hit the key that corresponds to "create shortcut", but what does paste have to do with this?
I tried both your examples, and they work, i need to change the letter to g, because of other language in windows, and my keyboard works as it should, not the most robust way to script, but it does work.
with delay! this do the paste function... but i want, after copying a file, paste only the shortcut of file (like the "past shortcut" in context menu).