now what I want is, that if drivers DVD is not inserted or driversroot.txt is missing then it should popup a msg saying "Please Insert Drivers DVD". and while poppingup this msg, there should be an option to cancel installation of drivers. now it should wait if I insert DVD and after inserting DVD it should continue installing drivers.I think this can be done by editing above batch file or can make a simple vbscript to do that. but I m scripting newbie so please help me regarding to this. Amit @ECHO OFF SET DriversRoot=NULL :SearchDriversRoot FOR %%i IN (C 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 %%i:\DriversRoot.txt SET DriversRoot=%%i:\ IF NOT "%DriversRoot%"=="NULL" GOTO StartSetup GOTO SearchDriversRoot and %CDDRIVE%\Driver\SetDevicePath.exe %CDDRIVE%\driver start %CDDRIVE%\driver\WatchDriverSigningPolicy.exe maybe ıt wıll be done