Prince Harry greets Windsor crowds ahead of wedding extravaganza

Prince Harry greeted royal fans gathered outside Windsor Castle to celebrate his glittering wedding to U.S. actress Meghan Markle this weekend.A smiling Harry was joined by his elder brother Prince William as he mingled with excited crowds waving red, white and blue Union flags less than 24 hours before his marriage on Saturday.The impromptu walkabout came as the final finishing touches were put in place for the royal extravaganza at Windsor Castle, home to monarchs for almost 1,000 years.