Digging into MSMQ again.
I'm sitting in a meeting digging through details of connecting supply chain pieces. Since we have a requirement for guaranteed message delivery without some sort of ACK, MSMQ fits in nicely here.
MS has put together an MSMQ Best Practices document that is pretty handy - outlining some key areas to use and others to avoid. This should be a fun infrastructure project given the fluidity of the situations.