I'm running NW6.5SP5 and iPrint.
When the NDPS Manager is loading the printer agents it seems to abend
NDPSGW.NLM on a printer agent but I can't see which one. I only see a
message that the thread is suspended and the server console says

How can I find out which agent is causing the abend?

Printing works fine expect for this abend. Sometimes the abend count in
NDPSGW increases to 3.