This book explores MSMQ so that you can initiate robust, asynchronous communication between applications. MSMQ provides three APIs to incorporate message queuing into different applications. These APIs include "C" from unmanaged C/C++ code; a COM component from VB or C++ code; and the System.Messaging namespace, which integrates MSMQ with managed C# or VB .NET applications. This is the only book on the market to cover all three APIs. Plus, this book discusses the features of MSMQ 3.0 (released with Windows Server 2003), and explains sending and receiving MSMQ messages on a PocketPC device.