Did the royal Outdoor Products Co in Ontario, Canada maker of the Royal Winchester vinyl sheds go out of business?
I don't think the Royal Outdoor Products Company in Canada went out of business. They have a website at http://www.royalbuildingproducts.com/product-directory.aspx. You can check it out to determine if it is the one in question.
Royal Building Products sold the shed business to Barrette Outdoor Living a few years ago.