I am a programmer, not formal! Mixed a small company that came from the library and bookstore, the company is small, but the acceptable project is quite: hospital image collection workstation, hotel management system, power supply company measuring management center warehouse management, Barcode generates printing program, power integrated automation interface, 120 emergency command dispatching system, ordinary road toll system, marriage registration system, sauna management. In the process of doing, the customer proposes a lot of requirements (very annoying, valuable), prompted me to conduct more deeper thinking about my own technology, for example: the ordinary road toll system adopts C / S mode, each charge window is charged 24 hours a day. The cost of crossing the vehicle is very high, but the existing C / S mode is the client fully dependent the server, if the server is getting off or needed to temporarily interrupt, this will cause the entire system (because of actually Each charging window will continue to increase the charge record through the local area network to the server)! At this time, the customer will temporarily let the client work, restore the server, and the network in the case of the network! I felt that the customer's question Microsoft's smart client technology can solve this technical problem ..................