Hello, I am experiencing the same problem as the above user:
I get an error saying "This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem." when I try to start SetPoint.
I have tried the clean install and clean uninstall, neither work. When I install, I get an error along the lines of "memory location cannot be written". The install doesn't change any files. When I uninstall, I get a similar message about memory. I have tried moving, changing, and deleting the user.xml file in C:\Documents and Settings\....\Application Data\Logitech\SetPoint but nothing seems to work.
I tried installing SetPoint into my Virtual PC and it works fine.
Unless you have a better option, I would like to know how to do a manual uninstall of SetPoint just as the user above mentioned - deleting registry keys and every file that SetPoint installs into my computer.