DLL Injection [DLLMain in VB6] Help with .DEF File [HELP!]

Hello guys!

I need some help in here, actually i need any help you could give me.

The thing is, I do know how to make an attached dll made in c++ startup, but in vb 6 I don't.

The only thing I know is that i need to create a file (that I DON'T EVEN KNOW HOW SHOULD BE NAMED) with the extension ".def".
It should hold some configurations about the linker and stuff...

One of that stuff is the "Exports" properties. There i should put the "DLLMain" function declared in my dll and then the magic will happen.
At list, thats what people say in some forums...

Basically i need to know how to create an injectable Dll, the porpouse is to run it in mine "Lost Source Code" .exe. I added a new window that do some cool stuff that i wanted to be shown there.

Any tip of the name? content? anithing?

And sorry for the POOR ENGLISH!

Thanks in advance.