I paved my machine a couple days ago, and went to re-install WS_FTP Pro, but couldn’t — it had “already been activated.” I wrote them and got this response:
You have been given one extra activation on your license key. […] To accommodate unforeseen circumstances, Ipswitch allows an extra installation and activation with the same license key.
What this means is you have to buy a new copy of WS_FTP (at $50 a pop) if you have to reinstall more than once. That sucks.