I´ve built the help file using html help workshop, but I don´t know how to implement context-sensitive help at form level.

When the user presses F1, the help window must appear showing the topic that corresponds to the current active form. How could I do this?

In .hlp files, you simply write the topic id in the HelpContextId property of the form, but in .chm files there´s no topic Id.

Thanx in Advance