Nothing (well…) that is made to run inside RH5 will run in the WIP. As in the other thread, you’ll have to wait for Guido to update that one. Of course, then it will only run a week at a time because each time a new WIP comes out, it will have to be recompiled (unless, of course, it’s built on top of the RhinoCommon SDK).
Having a bad day at the office this morning? He’s just trying to help you out in the short run (give or take a year 
).