On Monday, November 26, 2001, at 02:07 PM, Sean Morrell wrote: Are the BSD (I believe originally system V) message queues implemented in Darwin? Just making sure. I don't see the header "msg.h". Thanks, Sean No. They are not. --Umesh -- Umesh Vaishampayan Apple Computer, Inc. Mac OS X Kernel Ph: (408) 974 0229