I'm having the exact same problem. SA2 conflict is causing the DMXZone Behavior Connector to crash DW immediately when trying to use it.
Possible solution:
Just discovered that if you go into the Configuration folder and temporarily move the ‘Validation Toolkit’ folder (inside Behaviors/Actions) up one level, the DMXZone Behavior Connector will then ignore that folder when it starts up. I haven't experienced further DW crashes so I'm assuming this folder is the root of the conflict.
Jason, if I'm totally off with this theory, please correct me. Or if there's a better workaround please pass it my way. Thanks.