I have a CHM file created that opens through a button of my Windows Form Application. I don't know if it has to do with c# or the file itself, but when I open the file it opens succesfully but it shows first the "This program cannot display the webpage", then if you click any of the contens it shows the real page, I just want to display any of the contents when it opens instead of having the user to click on the contents to visualize it correctly.

What am I doing wrong?

Thanks in advance

Is the CHM file on the PC running the application or in a network location? A security issue exists where windows will block CHM content when served over a network.


I just needed to point in the HTML Help Workshop a default file to the project and then recompile.

Thanks anyway.