>>Very nice but what is the exact file name I have to put in this field
>>
>>hubert
>
>
>I have:
>
>c:\program files\microsoft visual studio 6\msdn\2001apr\1033\msdn110.col

That file seems to change from installation to installation. Maybe doing a search in the registry for that string will help to find the key value. Then, anyone can use that key value to locate the help file.