ISO files are images of CDs containing exact binary copies of the original CDs. They are known as ISO-9660 CD image files. Depending on the platform, you can either use these files to create actual CA product CDs, or you can use them directly.
Recreating actual CA product CDs requires a CD writer and mastering software. Most CD authoring applications can accept a pre-formatted ISO image file and write the contents of the ISO image to a CD. This generates an exact copy of the CA product CD that you would receive if you ordered your CA software through traditional channels. Consult the documentation that comes with your CD software for further information on how to write ISO files to a CD.
NOTE: Windows does Not recognize the .ISO file format and neither does an archive package like WinZip.
In order for you to access the installation files in Windows, you must create a CD with the .ISO image (assuming you have access to a CD Writer) or use a straightforward 3rd party software program like WinRAR, IsoBuster or Undisker as an ISO extractor. WinRAR is available from RARlab at http://www.rarlab.com