can I create help files in html help and add it to vb.net or are there another way to implement help system on vb.net I want to create custom help files
The .CHM file format (Compiled HTML) is the current format used for help files wit Winforms/WPF .Net application.
There are a variety of ways to create CHM files. I'd suggest checking out this question for more details on how to accomplish this.
For ASP.Net applications, you would need to generate your own help pages.
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