i had ads coming out of my taskbar
but I've had it popup an ad for some sort of game software one time
Posted only in the interest of sharing useful information:
To turn that sucker off, go into Impulse
Leftclick on top left menu item dropdown, the square thing or whatever
Click on "General" on left side
Underneath "General" on right side, uncheck "Load Impulse Now on Startup", click "ok" button.
Might have to exit Impulse, maybe close the little systray icon after that, but it shouldn't come back. You CAN turn it off, 1st thing I do.