VC++ merge multiple COM DLLs into one

Let's say we have multiple libraries (DLLs) whose features one wants to use in an application, and 开发者_开发百科wants to use them as a single DLL.

Is it possible to merge the DLLs into a single one, with all the features packed into it? I am not looking at the option to write a wrapper.

EDIT:

I've revisited the problem. Now all I want to do is bring all the projects under one solution and get a single DLL as the output instead of each project having it's independant output. Is this possible?

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You can't literally merge several compiled .dll files into one. Your best bet is to put all files into a single project and recompile as a single library. You will likely have conflicts you'll have to resolve manually.

If you really have several COM in-proc servers you will also have to merge the data that facilitates class factories and COM registration - you will have to do that manually.