>How can I create .hlp (help) files to VFP 9.0 and associate each topic to a form of my application ?
It is much easier to create files in the new help format: CHM files. Is there any reason why you want to specifically create HLP files?
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)