Auto Load Libraries Tab (Preferences dialog)
The Auto Load Libraries tab controls whether the following libraries used by EES are automatically loaded when the program is started.
Incompressible Substances Library
Changing the Auto Load status of a library does not provide any immediate effects. The changes must be stored in the Preferences file and they will take affect the next time EES is started. Use the $Load and $Unload directives to load or unload a library within an EES session.
Note that the Heat Transfer, Incompressible Substances and Mechanical Design libraries are automatically loaded by default. This behavior is initiated in version 11.568 and differs from earlier versions where only the Heat Transfer library was automatically loaded.
See also: $Load