For 24 hours only: http://www.giveawayoftheday.com/siw/
I went to look where it hides the license, but it appears to be embedded within the EXE itself. I copied the EXE to another box and it was still registered to Giveawayoftheday. There is an update check feature in the program, so you might be able to continually keep it update with the Giveawayoftheday license. I’ll update this posting with whatever I find. Until then, enjoy!
Update: You can’t update the Giveawayoftheday version. The license is programmed directly into the EXE itself.
– Soli Deo Gloria