WGL is a graphics layer API (often but not exclusively used by Java for 3d graphics), and dummy windows are a common mechanic used in a lot of OEM bloatware from companies like Dell and Acer.
So, basically, it's not necessarily a virus, it might just be poorly coded manufacturer software. My guess is it probably isn't harmful despite being annoying. Does this pc have any OEM software (like Dell Update, etc) on it?