My situation is:
Do we have any service/tool that I can reverse the Orchestration (+ Mapping) to original format (from DLL/MSI, or Running BizTalk application)?
If the reverse won't work I would like to see the Orchestration flow like the Visual studio designer. That's is good enough for me to trace everything
You have several options
I have used both tools to re-create lost source code successfully for three different clients.
(Disclosure: I'm a developer for BizTalk Documenter)