Client.dll and Camera.dll is same? Muemu S6

In mu emu s6 i have .. Client.dll + camera.dll + main.dll
but in ah info and main info only load Client and camera.. for whats is main.dll ??
and in client.dll sources this load custom chat window and camera 3d ... If I disable the load of client.dll and I just leave the camera.dll the same stays active the chat window and the 3d camera ...Then what does each one serve?
And because I have sources of main.dll s6 and no one uploads it?
Tyyy :D need help :3 !!

Up pliss :( how add new custom .. if only the main used camera.dll and nop have source of this :( .. main.dll and client.dll not apply new changes :(