In order to work with context sensitive help, you or the author of the help system can create id's for the topics in your project you want to call. (You can also omit id's and use URLs.) In RoboHelp you set these id's using the Project Set-up pod. In the Project Set-up pod, go to Context-Sensitive Help > Map Files. You create the context sensitivity by opening a map file.

When using id's, you assign a unique topic id and a unique Map number to a topic or an anchor in a topic. The Map number is a unique number ranging from 1 to 4.294.967.2951. The Map number is the id used for context sensitive help in CHM files and can also be used for WebHelp.

The topic id (called Map ID in the RoboHelp interface) is a unique alphanumeric string that identifies the topic. The topic id has a maximum of 255 characters and you can use letters, numbers and underscores. A topic id can also consist solely of numbers. The topic id is used by RoboHelp to connect a topic in the project to a map number.

Note:

• It is possible that a developer provides a map file that the author has to import in RoboHelp. The map numbers still need to be mapped to the correct topics.
• When the author has created context sensitive help in RoboHelp, the developer can use the project map files (files with the .h or .hh extension) and the alias file (.ali file) to import the context sensitivity in the application.

• 1. That's 4,294,967,295 if you are American.