Problem fixed, we use insteed of the Windows Vista Setup PE, the Windows AIK PE. It looks like there are some Network Problems with the Windows Vista Setup PE. We've got also a few problems with the AIK PE, that we recive, after the PE is booted, that he cannot find the Server (net use Error 53). We wait after the WPEINIT about 1 minute befor we try to connect a Network share. We've got about every 5 try's one fail. When we've got the Error 53, we need to restart, because every time we try after that, the same error occure on "net use". Strange but... are we the only one or are there other, who get the same error on "net use" command in Windows PE 2.0?