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I've found that the Nod32 antivirus has a feature which breaks TCP/IP Socket inheritance, rendering server apps like CVSNT unusable. At present the only workaround is to disable the 'IMON' service from the Nod32 control panel and reboot. As this service is designed to monitor POP3 connections it's probably not much of a loss to disable it. This may be the cause of the recent rise in '-1' errors and SSPI failures, since nod32 is starting to become popular. I've contacted Eset about this, and will try to keep people up to date. Tony