Support for these was added under APAR IC39879 (http://www-1.ibm.com/support/docview.wss?uid=swg1IC39879), which shipped in fixpack 8, although I do agree the documentation wasnt updated. Looking at the code I have suspicions you might need a fix on top of that as well (defect 80465) which you would have to get through service and is scheduled for fixpack 09.
This should enable the message and send / receive exits from a .net environment to be supplied Regards, Jason Edmeades [EMAIL PROTECTED] Websphere MQ Service Architect Internet email: [EMAIL PROTECTED] Instructions for managing your mailing list subscription are provided in the Listserv General Users Guide available at http://www.lsoft.com Archive: http://vm.akh-wien.ac.at/MQSeries.archive