Try this:
a) If you have all the creative shortcuts on the start menu:
Click on the EAX icon and you will see a EAX application running on the
lower right corner, press the little "letter" icon and uncheck "load on
startup", done.
b) If you deleted all the creative shortcuts on the start menu:
Go to "C:\Program Files\Creative\SBAudigy\Program" and run "demo32.exe",
load "CTEax.dbd" and you will see a EAX application running on the lower
right corner, press the little "letter" icon and uncheck "load on startup",
done.