Have you ever used Quicksilver on a Mac? Or maybe GnomeDo on a Linux system? If not, then I will explain what these programs do. They are programs that allow you to search for files/folders and even execute programs by just typing the name of that program. Type in 'Firefox' and it will allow you to open your website. Type in a song file name and it will allow you to play song in a media player. Launchy is essentially the cousin of the above programs. Only this cousin runs Windows (although Launchy does have a Linux version too). Launchy runs in the background of your system and only appears (or disappears) when you press 'alt-space'. The dialog box will open and allow you to search for the application/file/folder…
If you switch from Windows or Linux to Mac, one of the things you will notice is Mac OS X doesn't have a utility to help uninstall applications. To try and make things simple, Apple didn't include an uninstaller, instead all you have to do is delete the application files. The only problem with this is as applications began to get more complex, not all the files were located in the same place. Sure you can try and manually search for the files but there's no way you'll find all of them.
If you don't like deleting only some of the application files, you should give 


