How to open a CHM file through your C# application.

This simple tutorial will guide you, how to use a CHM help file with your Microsoft Visual C# projects or even small applications. To use a CHM help manual for your application, you need to first create a CHM help file for your project. After Creating your CHM file, you need to link it thorough your C# application. Let me show you how you can open it from your C# application.

Assuming that you all know how to start a new project on visual studio, I skip all those steps. As you can see above there is simple windows application contains only a single button. Now to open a CHM file by clicking on the “View Help Topics” Button, you have to write a single line code only. Double click on the “View Help Topics” Button and write the code below inside the scope of Button1_Click function.

System.Diagnostics.Process.Start (Application.StartupPath + "\\Help Document.chm");

After writing this code it will look like this

private void button1_Click(object sender, RoutedEventArgs e)

{

System.Diagnostics.Process.Start(Application.StartupPath + \\Help Document.chm);

}

Make sure your CHM file is in your application folder. Now Debug your application and test it. You can also open any other file or application using the code above through your C# application. Hope you find it helpful. Please feel free to ask anything and do comment.