Where is force quit?

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http://askubuntu.com – i'm trying to make a custom launcher in 11.10 for the special force quit launcher we had in 11.04 (you could add it from the list of apps,but now it is nowhere to be found ,even in alacarte ..) .. so i try using infos from here but i have no idea what the actual file or command is for force quit nor where it is in the filesystem.. this question is real specific to force quit itself and is not about asking how to create a launcher .. i will create a file called forcequit.desktop and put it in ~/.local/share/applications folder and will then drag it unto the toolbar like it is told elsewhere. (HowTos)