Use the helpid is attribute definition to indicate to the ESL application which help topic to display for an object or item.

To define an extended help topic ID for a region and its children, use the extended keyword. (See Defining Extended Help IDs)

You can specify either integer or string IDs for your ESL help topics. Integers are allowed to be consistent with the standard method for calling Windows Help. If you use integers, you must use a Map file with the Windows Help project to map the ESL help IDs to the Windows help context strings used in the help topic file. String IDs are allowed because they are more meaningful and are easier to maintain.