Help: 'Find' Tab on Winhelp

I have created a help file with contents, when I try to use the 'Find'
tab in Winhelp, i.e. use text searching, it simply hangs after selecting
the type of database I want (min, max etc)

Also the HCW utility doesn't appear to create a search index as it
suggests (even with compression & the FTS options switched on)

To make matters worse, the HCW.HLP file comes up with an Topic Not found
error at the point which might answer the above questions !

What am I doing wrong ?