BSD freedom, on the other hand, is ďlossyĒ. If I get BSD code I have a lot of freedom, but the next guy doesnít. Itís fairly well known that there is BSD code in Windows. And obviously, whatever Microsoft did with that code, they have no obligation to release their changes. So the code *was* free at one point, but it didnít *remain* free. Furthermore, even if they didnít change it one bit, if the original author is no longer around, Microsoft is still sitting on BSD code that is free for *them*, but itís no longer free for anyone else.