Ok my issue is similar to How to receive message from a private workgroup queue (and I am basically using the same code).
I am creating the queue on the host machine usi
OK .. I obviously didn't read all I needed to read. The answer was in:
MSMQ 4.0 - what's new in Computer Management?
I needed to add a new registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSMQ\Parameters\Security\AllowNonauthenticatedRPC
and set the value to 1.
Once I did this on the W7 server, then I could read the queue from the XP machine.
Am I the only one who thinks this is weird that anyone could write to the queue, but I had to set this to read from the queue? That is so bizarre.