What is an RPC Callback Thread?

I am using Visual Studio 2008. The Threads window shows two RPC Callback Threads for my application.开发者_开发技巧 What are these? More specifically, are they suppose to do?

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They are Remote Procedure Call Threads: http://en.wikipedia.org/wiki/Remote_procedure_call

Here is an msdn article on how Remote Procedure Call works on windows: http://msdn.microsoft.com/en-us/library/aa373935%28v=vs.85%29.aspx

The articles only deal with RPC over a network, but it is also used for inter-process communication.

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In Windows, RPC is most commonly used by COM+ (DCOM). Considering that you didn't use RPC intentionally, COM appears to be the most likely cause.