I have thought of a BRILLIANT idea! What if somebody made an add-on to the Portable Apps Platform that simulates a registry and all so you can install FULL programs that require a registry to PA!
What I'm thinking of would resemble Remote Desktop in principle, but instead of a whole other Windows computer, PA just has a registry (and maybe a way to make the Portable fonts fall under the same category as System fonts while it's running, and style themes as well) so you can run apps that would require a registry for things like purchased upgrades. It'd be a virtual system that contains the apps that are running WITHIN Portable Apps, and one could also install apps through it so when you set up, it skips the part where your computer records that app's filetypes.
It is a bit complicated, but that would make this thing SO much more powerful! What do you guys think?