The Vyzex Editor for the EWI4000s seems to be pretty much dead. Ok, well, the program seems to work alright, but that is about it. It has not had any changes in about 5 years. In the computer world, that is pretty much dead. So what alternatives are there? There is EWItool.
“EWItool is an open source controller for the popular Akai EWI4000s wind synthesizer. EWItool includes a fully graphical sound (patch) editor and patch library management. From version 0.4 onwards there is access to an online patch repository for sharing patches with others.”
Sadly though, there is not a Macintosh build for this. It does work under Parallels though. Is it worth looking into? Totally. There is also an integrated EWI Patch Exchange which is pretty darn cool. And you can submit your patches there too. Awesome.
The project seemed to be dead for a while as it was nearing almost 4 years of no updates, but lo and behold, in September of 2012 there was a pretty substantial update. Still no Macintosh version. Hopefully that will change soon.