thanks for replaying : ) 1- i tried it twice, but still the same, the first install begin, and before it finish, the second one start, and then the third one. maybe it's due to something wrong i did while i was using AutoIt? 3- cuz i put the install files in the $1 folder and the WPI files too. so there's no need to keep them after finishing the installation. well, i need to know what to do to delete these files. and if i want to keep the installing files and WPI files where shall i put the in the CD/DVD? in a new folder beside $OEM$ and I386? thanks again Same thing with me.... Somebody has a solution?? The problem is that when we use Autoit installers, they don't launch at the same time but the programs are launched after eachother, In other words: WPI doesn't wait to till the previous program has finished before starting the next one....