I’m using MllpSend for simulating my HL7 ADT system. When I use this tool and wait for an ACK (which I don’t get in a particular test scenario), then my BizTalk Server 2009 Administration Console gives no response (except for this message box 
:
I’m using the command:
“C:\Program Files\Microsoft BizTalk 2009 Accelerator for HL7\SDK\MLLP Utilities\MllpSend.exe" /I 127.0.0.1 /P 11001 /TWOWAY /F "C:\temp\BizTalk\validHL7Message.txt" /sb 11 /eb 28 /cr 13
Probably it has to do with the Mllp adapter, because the MllpSend is just listening to a socket.
Do you have any idea?
One Comment
Did you ever get anywhere with this issue? I have the same problem, and it’s quite frustrating. I’m unable to get ACKs, unable to get MLLPSend.exe to work with TWOWAY parameter, and thus unable to use the two-way receive MLLP adapter.