Hm, this is how I have it set up. It is odd because it appeared to behave normally the first time (even though wow crashed before start), but proxifier ignores every launch attempt attempt after, meaning it doesn't show up on my active proxifier connections when launched.
Edit: Ok, I removed the port from my settings and now it is seeing the application. However, WoW crashes before starting.
Edit 2: Tried reinstalling WoW, allowing things through firewall, and testing my authentication to the proxy. Not sure what else to do at this point. Note that WoW launches fine when not routed through proxifier.