Yes, they do unfortunately. Often they are relics of some old homespun solution no one understands and everyone is afraid to touch, maybe a product of a dead co

Yes, they do unfortunately. Often they are relics of some old homespun solution no one understands and everyone is afraid to touch, maybe a product of a dead company, or simply ancient versions that haven't been upgraded in eons because it's cheaper and easier to keep IE6 installed.