From Nikolay Dudkin:
In case Lotus Notes client application terminates unexpectedly, process nlnotes.exe is closed, but one or two of the other Lotus Notes processes continue working and block Lotus Notes from being relaunched. In such case the following error message would be displayed: This small utility terminates processes nlnotes.exe, ntaskldr.exe and nfileret.exe so that you can start Lotus Notes client without rebooting your computer.
If this program is launched with /restart parameter, it also searches for Lotus Notes installation path and tries to launch it. This version is the first release on CNET Download.com.