I'm assuming it doesn't work for CATA or MOP, but just for 3.3.5?
<edited> Oh wow! Just tested it on my VIP MOP server and it WORKS! Lots of LUA Errors (nothing new there lol) but it defs works! Color me impressed! :) Thanks for sharing!
Did you solve your issue? Anytime that's happened to me I just go into Windows Task Manager, locate the MySql app that's running (sometimes two of them from memory?) and RIGHT CLICK END TASK. Then try again.