Queued Components
In Chapter 8, we learned that .NET provides a mechanism to invoke method calls on an object asynchronously. Using the BeginInvoke call on the delegate of a method, a client can invoke the method asynchronously, either on the same machine or on a remote machine.
Although the support provided by .NET in its current release is a good first step toward asynchronous programming, it still lacks a few useful features. For instance, there is no support for disconnected work; the client and the server have to be running at the same time. There is no built-in mechanism for auto-retry in case the server is down at the time the client is making a call. This gap is filled by the support provided by COM+ for queued components.
A queued component ...
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