Take a look at this article
and see if that helps. (I've not tested, but it looks like it might work...)
And just so you understand:
The redirection is done by Windows itself for any 32-bit app. It may look odd, but the win6432node is where all 32-bit apps get redirected to, so that should be where you need to look too, unless you are trying to set the registry of a 64-bit app.