[Code]
var
  StoredHeight: Integer;

procedure InitializeWizard;
begin
  // StoredHeight set to -1 here indicates the unchanged form height; it is used to prevent bothering
  // of WizardForm.Height setters at every page different from wpSelectComponents when the heigh is not
  // modified
  StoredHeight := -1;
end;

procedure CurPageChanged(CurPageID: Integer);
begin
  // if the Select Components page is entered, then...
  if CurpageID = wpSelectComponents then
  begin
    StoredHeight := WizardForm.Height;
    WizardForm.Height := WizardForm.Height + 200;
  end
  else
  // a page different from Select Components page was entered, so let's now check if we have modified
  // form height (StoredHeight <> -1)
  if StoredHeight <> -1 then
  begin
    WizardForm.Height := StoredHeight;
    StoredHeight := -1;
  end;
end;