I have 2 application say a and b. When i start the application a, that moment i want to invoke the application b via COM. Is any body can help me this?
please send me your suggestions with example.

Thanks in advance
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Its very simple, create instance of b in constructor of main class(coclass) of a.
An example, in ATL project
     CComPtr<IMyServer> pIMyServer;
To understand above code, you need to learn at least basics of COM (and bit of ATL for above code).

Go to the following link to find loads of ways, info/tutorial of achieving it.

Also take a look at

This should be enough to give you a good headstart
Good luck,

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what you are trying to do is termed as automation. Your application b has to be an EXE COM automable server.

Are you going to write both applications or that you already have b (for e.g. b can be MSWORD) ?

has tons of links related to COM and automation etc.
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