The installation packages for the CASSIE System are distributed in the MSI format, which is the native format for the Windows 2000, XP and Vista operating system families. Windows Installer executables are available for download for Windows 95, 98, and NT computers, which will allow these computers to install the MSI packages.

Distribution in the MSI format facilitates the creation of a network installation image for automatic installation on a large number of computers, if you use Active Directory on Windows 2000 Server or Windows Server 2003. Complete details on how to do this are provided in the CASSIE Installation Manual.

All installation packages are digitally signed by Librarica LLC, ensuring that they arrive at your computer without modification or other tampering.