Plug-ins can be individually disabled in the selected browser using the appropriate Tools menu option for disabling the plug-ins. 

The installer does not add an entry to the Add/Remove section of the Control Panel for SmartHelp.  Rather, the installer creates an uninstall batch file that can be run with the parameters for removing the individual plug-ins, or all of them at once. By default, running the batch file without parameters will remove all installed plug-in files, registry entries, and so on. The same result can be accomplished by passing “all” in the command line. 

Examples: 

uninstall.bat all – removes all plug-ins 

uninstall.bat SmartHelp_for_Internet_Explorer - removes the Internet Explorer plug-in 

uninstall.bat SmartHelp_for_Firefox – removes the Firefox plug-in only