*THIS WILL DISABLE INTERNET-EXPLORE FROM LAUNCHING IN TOTAL, SO UNLESS YOU USE FOX-FIRE I WOULD NOT ADVISE USING THIS METHOD*
To disable the Knight-Online popup after closing the game follow the steps below.
1. Click Start, Settings, Control Panel.
2.Click Administrative Tools.
3.Click Software Restriction Policy, Additional Rules. Right Click and press "New Path Rule"
4.Find your iexplorer.exe and set the Security level to "Disallowed". Press "Ok" and your done.
If anyone knows of a method to avoid a total blackout of iexplorer please post below. Thanks