Specifies whether the External File Mapper is enabled. The External File Mapper allows you to assign values to environment
                  variables in a file. If the External File Mapper is enabled the system searches for the file 
                  		mfextmap.dat. 
                  	  
               
            
 
            	 
             
               		
               Restriction: These tunables are supported for native COBOL only. 
                  		
               
 
               	 
              
            	 
            
               Syntax:
 
               		 
               		>>-----set environment_mapper=---.-TRUE-.-------><
                                 +-FALSE+ 
               	   
            	 
            
               Parameters:
 
               		 
               		
                
                  		
                  
                      
                        			  
                        			  
                        			 
                         
                           				
                            
                              				  
                              | TRUE | The External File Mapper is enabled | 
 
                           				
                            
                              				  
                              | FALSE | The External File Mapper is not enabled. | 
 
                           			 
                         
                        		  
                     
                    
                  		
                 
               	 
              
            	 
            
               Properties:
 
               		 
               		
                
                  		
                  
                      
                        			  
                        			  
                        			 
                         
                           				
                            
                              				  
                              | Default: | FALSE | 
 
                           				
                            
                              				  
                              | IDE equivalent: | None |