So I downloaded keyclone from here. And it looks nice, but I have to buy it without trying it out?

No free trial?

And once i ran it there is an icon in my system tray, and I can't get rid of it.

Tasl Manager can't get rid of it, and clicking it does nothing.

Whats this for?

I love the idea here, but I don't want to pay for something without trying it out.