text: The client retrieval preview exit point might be enabled for specific applications. However, to 
  enable the client retrieval preview exit for a specific application, ensure that the Use Preview 
  Exit option is selected on the Miscellaneous Options page of the application. 
  
  The input to the exit program is captured when the user tries to retrieve the document. Based 
  on the input, such as application group name and the indexes, you can then use your program 
  to create an output file with the name from pOutFileName. 
  
  Example 11-11 shows the header file of the client retrieval preview exit. 
  
  *Example 11-11 Header file of client retrieval preview exit*