Short description of Advanced Installer Professional 6.4: Advanced Installer 6.4 is a Windows Installer authoring tool which enables developers and system administrators to easily build and repackage complex applications into reliable, ready to deploy MSI and EXE installers, patches and on-line updates. Advanced Installer runs on Windows 2000/XP/Vista, and the install packages it creates run on all Microsoft Windows 9x/ME/NT/2k/XP/Vista operating systems.