hi all. thx for the support all you give... So i just wanna learn something 1) is it possible to change DIRECTLY (just after appliyng tweaks) the wallpaper ? 2) I would like to improve my install by play some .wav or MP3 during the install, or under windows XP, play a sound but without the media windows.. is it possible ? for example when XP boot and logon, a wav is playing to announce windows start... like a melody.. (sure everybody heard this ).. and this sound is played without the media windows... i would like to do the same.. with a batch or registry tweaks.. but don't know how to do. maybe someone can help me ? thx