Launch the CS Help compiler GUI from the start menu option:
start->programs->Symbian xx SDKs->Development Tools->CSHelp
Compiler
where Symbian xx SDKs
is the version of the
SDK you have installed.
On launching the CS Help compiler GUI for the first time you are
required to set your preferences. These can be changed at any time afterwards
from the file | preferences
menu, see
How to set project preferences.