The video you posted refers to Apple-specific Quartz technology which, while cool, almost certainly won't work on Windows.
The same PPro SDK used to make Mac plug-ins, also shows how to make Windows plug-ins.
As BBB said, the PPro SDK is the foundation for plug-in development for both Mac and Win. Seems like you are looking for an effects platform that doesn't require knowledge of C++.
Besides FxFactory as you mentioned, another one that comes to mind, but is not quite yet available, is Red Giant Supernova. This one will likely be cross-platform. You can Google "Red Giant Supernova" to learn more about it. And here's the current way to request developer access if you're interested in pursuing it further:
Yes, the goal is to make a custom UI plugin without knowledge of C++
I definitely will check that out!
Thank you, Zac!
Seems like GenArts Sapphire 8 will have a Builder to create custom effects and transitions!