Microsoft seminars
Microsoft seminars is always good source to know more about Microsoft technologies, I hope these seminar sessions will help you
Microsoft Distributed services seminars:
MSDN Support WebCast: Building distributed services on the Windows Communication Foundation
https://support.microsoft.com/default.aspx?kbid=907388
Support WebCast: Introduction to Microsoft Web Services Enhancements
https://support.microsoft.com/default.aspx?kbid=821377
Support WebCast: Message Queuing Application and Architecture Design
https://support.microsoft.com/default.aspx?kbid=816889
COM+ seminars
https://msdn.microsoft.com/seminar/mmcfeed/mmcdisplayfeed.asp?Lang=en&Product=103379&Audience=100402&frame=true
MOREINFO:
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Microsoft semiars
https://www.microsoft.com/events/webcasts/ondemand.mspx
Past Support WebCasts
https://support.microsoft.com/pwebcst?cid=C_7935
MSDN tv