For HTTP, can we distinguish between sending back a '200 OK' with any appropriate MSH replies, and waiting on a business reply? Just because the '200 OK' goes back does not imply the connection will close. We can still hold the connection for business responses. This would simplify our discussion in v1.06 section 7.5.2. I still think the default behavior for HTTP should be for MSH signals to return with the '200 OK'. Regards, David Fischer Drummond Group.