To install the Help file to Delphi 4 please follow the instructions listed below:
1. Copy *.hlp and *.cnt files to the DELPHI4/HELP directory
(if you have installed Delphi to another directory e.g. D4 then
specify it instead of DELPHI4)
2. Find delphi4.cnt file and open it with any text editor. Find INDEX block and add there a line:
:Index Dream Help =dreamhelp.hlp
then you can use vcl help by press F1 after selecting the vcl control.