How to Close Window Automatically upon Its Startup
Available in: Actual Window Manager, Actual Window Guard.
Create specific settings for the desired target window.
Go to the Closing property sheet of just created settings.
In the Close Window Automatically group mark the At startup check box.
(Optional) If you don't want your target window closed immediately, you can mark the related Delay before closing check box and specify how long to wait before closing.Example
Typing 7.5 will mean that the target window will be closed seven and half seconds after the moment it opens.
Apply your adjustments.