Micosoft is no longer accepting new accounts or listings to its two-year-old free classified service Windows Live Expo. The current listings will drift on until July 31, when the site goes down for good. As consultancy Classified Intelligence points out in an email alert, when Live Expo was rolled out in February 2006, it looked as if Microsoft (NSDQ: MSFT) could offer a real challenge to CraigsList and other listings sites like eBay’s (NSDQ: EBAY) Kijiji. But the service quickly came to be treated as an afterthought and was starved of any additional promotion. So even though Live.com attracts about 77 million uniques a month, according to Compete.com, only a small percentage bothered to use the Live Expo. As of Thursday night, according to Classified Intelligence’s count, there were only 443 automotive ads, 537 recruitment ads and 424 listings across all real estate categories.