If it works without killing Tablet.exe then you could create a text file
with the content
net stop tabletservice
net start tabletservice
and save it with a name of tablet.bat (make sure it does end in .bat and not
..bat.txt). Place it (or a shortcut to it) on your desktop - more convenient
than having to go through the services control panel.
This is assuming you've installed the latest Wacom driver...