I saw http://www.ourcompany.com/sub/registration.aspx on printed on a glass door the other day - looked like etching at first, but may have something else? This was at a local theater/event space, IIRC.
"ourcompany.com/register" is infinitely more understandable, and unsure why no one in the chain of command for that decision didn't press for something simpler. But they often don't (still). I remember seeing an email printed on a service truck back... 2002? 2003? "Email us as www.myservicename@yahoo.com". I never tried it - perhaps they actually had that email, but I suspect people were still in the habit of saying "www dot" before anything that had to do with "internet".
It left me wondering whether the bosses if the company just don't care or if they were told by the web design company they hired for their site that it'd add thousands to the website cost and decided against it.