windows drivers .dll files question

[Hemlos]

I am trying to do stuff with .dll files...

I tried to declare some globals in one.
Also i tried to use it to build a specific 3d object with X_obj

It compiles, and lets me call the function, but anything inside is ignored for some reason.

I tried something simple, like declare some globals values.
nada.


What exactly can we do with a .dll, exactly what, specifically?

[Foo]

I haven't tried to use a dll atm, but an example is under:
GLBasic\Samples\_Projects_\fmod_player

[MrTAToad]

Do you have any example code ?