now my work is write a program to set ssid and set wep in windows xp, now I can finish this work by using the ndisuio sample driver in DDK, i have renamed it,but i have met a issue, after i change the protoname, DeviceIoControl always fail,and error code is can't find the file specified,if i no change the protoname, it run well, but It exists that the conflict between my driver with the system ndisuio driver.thanks for any help.