It's a render-only version After Effects. You can't create, edit or even open projects with it. You install it on other machines on your network and they render your projects for you ( a Render Farm). You just have to make sure the other machines have the same plugins, fonts and codecs as those on your main machine. If you have enough extra machines it really speeds up renders. Even with only 1 extra machine you can start a new project while it renders.