changing a default program

I am trying to open the help files that are associated with Corel Psp x6 but every time I click help, it tries to open Dreamweaver. Dreamweaver won't open and gives me a message saying it stopped working and has to close.
I tried opening the help files when Dreamweaver was already opened and got the message in my attached image.
I don't know how to change the default for this help file. I don't know what type of file it is and I don't see any options in my control panel for opening help files.

I ended up getting an answer on the Dreamweaver forum. I guess I had Dreamweaver set up as the default for viewing html.

Glad you resolved it.