How to use the dlls

Question

Hi all, Im very newbie in C#. I have a work in our new project. I have given an application which will make the telnet, ssh etc to the remote hosts. I really dont have any idea in which language is written. But the folder contains some dll's i understood that they are using the dlls. I have given the task that whether I can use the dlls in C# to connect the remote host. I dont know how to proceed If you want I can share the libraries also.. Can anyone help me in this..
Any help is of very grt help..


Thanks in advance.