Using F1 to view help files.

Hi
I have a set of help files that need mapped to different forms with in an application when the F1 button is hit.

I have to map to html files(133 of them) if there is an internet connection and map to a Compiled html file if there is no internet connection.

I have 133 names of the files that i need to map each form to but havent got a clue how to even start.

I am due to go on a three week C# course through work next month, I have done some C# in Uni but not much,

any help welcome.

Thanks