I need help with Dll files

[Guest_imported]

I doing game, it's role playing game, where player can talk with other computer controlled players. My problem is that I planned to put chatting lines to Dll file. I don't know how to do Dll files and how to read them. I hope you understood what I said. Btw; I'm using vb6.
If someone knows how to do this, please write to me!
Thank you.

I'm sorry for my bad english.