The language can be set from "HTML Help" SSL options dialog by picking the language setting as "English(US)" from the drop down list. However, this option is to be set each time the output is generated.
good suggestion, but unfortunately it didn't work.
YES, it worked! Thanks Mayank.
Selecting Dutch as a default Language did not work, but selecting English (US) did.
And however the setting is not saved after generating, my window caption stays OK,a lso for the next outputs. So somehow the setting seems to be saved for the project.