When you uninstall a software from your computer there is chance that it will left some entries undeleted, like registry entries, some files, etc.. Smarty Uninstaller will help you to remove all the entries left by an uninstalled software easily. Revo uninstaller is a similar kind of application which offers a portable edition too.
Delete the software entries completely
Easy to use
Make sure you will not remove any system files
Manage startup applications
Force uninstall when the regular uninstaller fails
Secure delete (delete files, and over write the location, so that the files can’t be recovered
Add up to 5 application in the queue to uninstall one after another
Drag and drop uninstalling
This application is good but the only concern is the development, there is no update released after June 2011 that is more than 2 years.
This application price is $27.95 normally but you can get this application for free from here