The Debugger process sends commands to the client based on menu options you select and other actions you take in the Debugger window (such as setting breakpoints). The client interprets the commands, performs relevant actions (such as honoring breakpoints), and sends run-time information to the Debugger process in response. For example, the client sends the procedure and line number of each breakpoint it encounters. The Debugger process uses the run-time information it receives from the client to manage and display procedure listings, variable values, and so on.