How do I add links to launcher

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http://askubuntu.com – I am new to Ubuntu; I've been using it for a couple hours now, and I encountered one little problem that I was hoping to solve. I got a program on my computer without actually using the software center or packages, it's just a folder with a executable file in it. So I figured that it's not a problem and just put the folder in a safe place and created a link to the executable file which I put on the desktop. So here's the question: how do I get the link into the launcher? (HowTos)