I copy from my xp partition : activeds.dll & activeds.tlb, adsldpc.dll and wldap32.dll Now, dameware nt utilities stay open without crashing when launch. I will try asap to connect to a user station. PS: The installation of cc580 seems to crash winecfg :( How can i roll back to previous cc580 dll to verify if it restore winecfg and if i must do a choice between winecfg or dameware nt utilities ?