Microsoft Streets & Trips (also called AutoRoute) will be discontinued by 31st December 2014. Looking for a better alternative? Then consider the online route-planner portatour®. portatour® supports multi-stop route-planning for up to 125 stops, it can show up to 1.000 addresses on a map and has many more functions for professional route planning and route optimization. It is especially useful for professional sales reps working in outside sales, support and service. Here is an article about it:

http://www.portatour.com/blog/en/blog/2014/10/30/great-microsoft-streets-trips-autoroute-alternative-replacement-portatour/