Merged revision(s) 51569 #570ec7af98 from trunk:

Fix memory leak in HtmlHelp_IPro example project. Issue #29611, patch from wp.
........

git-svn-id: branches/fixes_1_6@51608 -

examples/htmlhelp_ipro/htmlhelp2viewer.pas

@@ -147,5 +147,8 @@ begin
   BringToFront;  // needed if already open and another help is shown
 end;
 
+finalization
+  FreeAndNil(Help_Viewer);
+
 end.