No specific info about version 1.8. Please visit the main page of Extension Manager on Mac Informer.
Implement virtual devices on your Mac using DriverKit.
ZXPInstaller is a user-friendly installer for Adobe extensions.
ZXP Installer allows you to install Adobe Extensions.
This action pack extends the power of Automator in Leopard with 20 actions
SystemSound - play sound files like in Mac OS Classic.