Thanks, it works perfectly. Now, for the end of my program, I have to re-configure automatically the ip config of the computer (ip address, mask, DHCP or Static...). I would like this function to be non dependant of the windows langage so I am thinking of looking at the GetInterfaceInfo IP_INTERFACE_INFO GetAdaptersInfo MIB_IPADDRROW functions of windows, with building a dll in C, but I will have to do that with one of my colleague because I don't know these functions so well.
Maybe there is a solution in labview to know the DHCP / Static mode easily, non dependant of the language ?