How to stop screensaver from running (not deactivate)

I am trying to stop the screen saver from running based on a external trigger
from our application.

I have a .Net application and I am using interop to make a
SystemParameterInfo() call to determine if the screensaver is running and
that works OK, but I do not see a way to force it to stop running. I tried to
deactivate and reactivate it but that does not force it to quit. I do not
want to disable it all together. I really just want a way to stop the
screensaver from running and reset the timer to start counting again from 0.

Any ideas?