BT- I wasn't saying that CL will go after you for doing that. I was simply pointing out that legally they could. I don't think Steve Cooper's the sort to get upset about that sort of actions for a single user. If you sold the code, I'm not even sure he'd get upset. Of course, if you wrote a program to handle Poser .pz3 files, set it up as an integral part of 3ds max, and sold 10 million copies of 3ds max, I'm pretty sure you'd be talking to CL's legal department within a few minutes. ;) Of course, I'm not Steve Cooper, nor Curious Labs, so if you really want the official line, I'd recommend asking them. I'm sure they have enough attorneys to answer the question suitably without my input. And, yes, every company out there that sells .mp3 players pays a licensing fee. The biggest thorn in the sides of the recording industry for the last 3 years was that someone else developed it in fact. They had been trying to get their own standard together at the time, but couldn't... So they actually sued to have .mp3 players made illegal on the grounds of copyright infringement. In the history of copyright law, it was a pretty defining moment, and most folks agree that had they instead pushed their own format, instead of attacking .mp3, they would've stood to make hundreds of millions of dollars from the licenses alone. You know what they say about hindsight, though... Regards, Paul