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Mark, Do you do a connect before you try to send? If so, do you check for errors on the connect? I suggest writing a complimentary program to emulate whatever the host at the outside vendor will do, and work out the bugs with your two programs talking to each other. Then, once you have it all working you can point it at the vendor and see what happens. -Marty ------------------------------ date: Wed, 9 Aug 2006 12:16:45 -0500 from: mgarton@xxxxxxxxxxxxxxx subject: Socket Descriptor Error I am working on a project where I connect to an outside vendor using sockets. I am getting a EBADF - "Descriptor not valid" error when I try to do a send. The code that I am using works in other programs. I verified that the socket descriptor is consistent in my program. I am not sure what else to check. Any help would be greatly appreciated. Thanks. Mark Garton
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