ABCD Reader is software which was developed by AV Books Publishers which opens files with .ABCD extensions. ABCD Reader application runs only on Windows platform such as Windows Vista, Windows XP, Windows ME, Windows 98, Windows 2000, and Windows 98SE. Pentium II with 256 MB RAM is being recommended if you are using Windows 98 and 98SE as well as for Windows ME. Pentium IV with 512 MB RAM is the system requirement if you are running on Windows XP. A system requirement of Pentium III with 256 MB RAM is being recommended for Windows 2000. If the user is running an Internet Security Suite on his computer most especially for newer versions, a requirement of 1GB is being recommended for XP users. The system requirements should be followed strictly as there will be instances when it may run but the performance will not be as good.