The IMLMLIB library is a catalog in the SASHELP directory. The catalog contains an entry of type IMOD for each module. Each entry is a module stored in its compiled form.

The SAS/IML source code that defines a modules is available in the catalog SASHELP.IML. There is an entry of type SOURCE for each module. You can view the source code in the program editor window under the SAS windowing environment by using the COPY command and specifying the four-level name SASHELP.IML.modulename.SOURCE

The source code can be edited for customization or enhancements, and can be included in other SAS/IML applications. The modules also illustrate a variety of language features that can be used to solve statistical problems.