Help Insight is a feature of the Delphi IDE that displays a popup with a short description of the identifier currently under the mouse cursor. By default it shows the following information: * Identifier name * Kind of identifier (field/variable/method etc.) * source position where it is defined (unit name, line and column) * type (e.g. system.string or system.integer It looks like this: For methods you also get a description of the parameters and the return value: The following tags are being evaluated: Example: /// parses the commandline /// is a string giving the commandline.