I have do a install with merge module .msm. My Build is OK and all dependencies are good. But when i want Launch my setup, i have an error in french (WinXP French)" Erreur lors de l'écriture dans le fichier XXXXX.dll. Vérifiez que vous êtes autorisé à accéder à ce répertoire." in english its "Error writing to the file XXXX.dll. Verify that you have permission to access this directory" I m admin I think the problem come in my msm but i don't know what it is ? Can you help Me ??