I was playing around with trying to deploy an assembly that did not have a strong name to the BizTalk project. I rebuilt the VS project and redeployed without stong name file. I unenlisted the orchestration and then re-enlisted.

When I tried to restart the orchestration I got an error message "Provided load failure". I tried to start the BizTalk Admin console and it attempted to load with the error "Unable to update BizTalk host". Problem was resolved by a server reboot.