"WBICreator" (Windows Bootable Image Creator) is a free and portable utility created by AskVG reader "Shashi Kumar Sinha" which allows you to create bootable ISO image file of Windows XP, Vista, Windows 7 and Windows 8 setup.
You just need to give any desired name to ISO image file, select the folder containing Windows setup files and select the target folder which will store the new ISO file and you are done. Just sit back and the bootable ISO image file will be created automatically within a few minutes which can be burned on a disk using any CD/DVD burning software.
This software is portable so you don't need to install it. Simply download the ZIP file, extract it and run the EXE file.
Its very simple and easy to use and works like a charm.
You can download it using following link: