Does 3DAnalyze work for full games only, or also for demos?

[HydraH]

Hi there. I have an Intel D102GGC2 motherboard with onboard ATI Radeon Xpress 200 graphics card, and I've increased its memory from the default to 256 MB. The system RAM is 2 GB, some of which is shared by the graphics card.

I downloaded the demo of The Chronicles of Riddick - Escape From Butcher Bay (2004), and Fuel (2009), but none of them run at all. Riddick starts loading and goes on endlessly, I have to use the Task Manager to kill it after about ten minutes, while Fuel gives some sort of message that it cannot run. I can understand Fuel, since its a new game, but Riddick? I was wondering if this is because these are demos, and if I get the full games, they might run? Or is my computer too old to even take help from 3DAnalyze?