To obtain the latest Version of Matrix Maker software for all KSI programmable keyboards, please log in to our FTP site using the following URL: ftp://ksikeyboards.com The user name is "matrix" The password is "KSI123" (Case sensitive) After the site opens in Windows Internet Explorer, click Page, and then click Open FTP Site in Windows Explorer. There will be one .zip file on that site for download "KSI-ALL MM Setup 2604.zip" After downloading the file, there is an .exe with the same name that contains the installation program. Documentation and the PS/2 driver are copied when the install file when it is run as well.