I'm fairly sure Environments hasn't been ported to Pharo. Namespacing is still on open question on Pharo. The little I know about the topic is that its complicated since it can introduce as many problems as it solves. its something that is wanted, but priorities have taken precedence. A bit work being done in the background should support namespaces when there are resources to "get it right" ... <http://forum.world.st/Namespaces-was-Re-Behold-Pharo-The-Modern-Smalltalk-tp...> http://forum.world.st/Namespaces-was-Re-Behold-Pharo-The-Modern-Smalltalk-tp... For the moment, best best is a few tips on converting from namespaces. <http://forum.world.st/Migration-from-VW-to-Pharo-td5098328.html#a5098334> http://forum.world.st/Migration-from-VW-to-Pharo-td5098328.html#a5098334 Thanks for the links. Not having a quick and easy way to create namespaces in Pharo to ease porting of VW code is my main impediment. If Pharo namespaces existed, I would just deal with all the other problems, and push on, instead of using them to justify returning to VW. I can learn to deal with Iceberg. Shaping