Ahh, do not confuse NetBios with RPC my friend.
Then I mean the same ports NetBIOS uses can be blocked by disabling netBIOS. So I never have to disable DCOM, and I never had to cripple anything. I disabled netBIOS, a feature I do not use, and thus ports 135 - 139 were shut down completely without any loss of configurations or computer services.

Editing the origonal post wouldn't let me upload a picture, so here is what I am talking about for the NetBIOS configuration and disabling ports 135 - 139