I use the free version of zone alarm with the annoying splash screen. I couldn't get rid of it until I ran across this trick.
At the zone alarm shortcut, ( in the start up folder), right click for properties and modify "target". At the end, add -nopopup -nosplash.
I think it works for some other programs, give it a try.
To all of you that already knew this: Why didn't you tell me sooner?
It looks like this:
edit: changed image to jpg