### Open New Source

Note: The Open new source choice on the File menu is available only on the Source and Session Control windows.

Select this choice when you want to view a source file that is associated with your application, but is not currently shown in a Source window; for example you want to set a breakpoint before a new module is called. The Open New Source dialog displays.

Note: Open new source does not change the program being debugged. The source file you select must be one that is used by the program you are currently debugging. If instead you want to switch to debugging a different program, select Startup from the File menu.