There are a number of PL/I Programming Examples for the OpenVMS environment which have been culled from this site.
These examples of PL/I code in the OpenVMS environment, range from simple applications to systems programming and has a search engine to assist you in locating specific examples. Suppose, for example, that you are looking for coding examples calling SYS$QIOW. Enter, PLI-EXAMPLE + SYS$QIOW into the search engine.
Both PL1 and PLI are used in this data base. Click on these links and enter specific items into the search engine to further refine the search.