First, Hi to all (I'm new here) I want to install my favorite game with autoit (with the original dvd) My script for silent install of my game is done but I'd like to AutoIt retrive my CDRom letter then launch the setup exe I used this code (batch file)wich occures me a lot of problem(...I'll won't explain it but after many changes I founded no issues), after, launching my compiled script wich installmy game : FOR %%a in (D E F G H I J K L M N O P Q R S T U V W X Y Z) do IF EXIST %%a:\PKBE_Setup.exe set CDROM=%%a: "%CDROM%\PKBE_Setup.exe" I'm looking for the same code in AutoIt language My setup is PKBE_Setup.exe (in the root of the dvd) I launch my compiled script from a batch file (from a cd on my other cdrom drive) I hope someone will help me because I'm unable to write this code