Check out this illustration of the functions of COM Single Thread Apartment (STA), Multithread Apartment (MTA), and ATL Auto-thread Module with a testing client-server application.
Latest Apartments & Threading Articles
Understanding COM Apartments, Part I
In the first part of a two-part series on COM apartments, Jeff Prosise describes what apartments are, why they exist, and how to avoid the problems that they introduce.
Understanding COM Apartments, Part II
In the completion of his two-part series on understanding COM apartments, Jeff Prosise illustrates why the lessons learned in last month's discussion of COM apartments are so important by giving concrete examples of how this knowledge can help you develop better and more efficient COM applications.
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.NET Framework: Collections and Generics
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Working with Container Controls in VB.NET
Hannes du Preez explains what Container controls are, which Container controls are available, and how to use them.

How to Create MapReduce Jobs for Hadoop Using C#
This article introduces you to Big Data, Apache Hadoop and MapReduce jobs. We will also learn how to create MapReduce jobs using C#.