text: An exit routine must be eligible for execution by associating a logical exit point 
  (ARS.SECURITY). In this example, the MVS Dynamic Exit Facility provides several methods to 
  perform this association. You can use the**PROGXX**statement in Sys1.Parmlib to define exits to 
  the Dynamic Exit Facility at IPL time (Exit statement for**PROGXX**). 
  
  The following example shows the exit statement for**PROGXX**: 
  
  EXIT ADD EXITNAME(ARS.SECURITY) MODNAME(ARSUSECZ) 
  
  In addition, you can use the following operator command to add the exit: 
  
  <html>
          <head> <meta charset="UTF-8">
          <style>
          table, th, td {
              border: 1px solid black;
              font-size: 10px;
          }
          </style> </head>
          <body>
          <table frame="hsides" rules="groups" width="100%%">
              [html]<thead><tr><td>Important : The load module must be in a link pack area ( LPA ) or an LNLIGLST dataset.</td></tr></thead><tbody><tr></tr></tbody>
          </table> </body> </html>