Creates an entry in the 
                  		mfentmap.dat file to allow the load module (filename.390) to be called by an alternate name.
                  	 
               
            
             
            	 
            
            	 
            
               Parameters:
 
               		 
               		
                
                  		   
                  			 
                  - aliasname 
                     			 
                  
  
                  			 
                  - The alternate name to be used to call the load module. 
                     			 
                  
  
                  		   
                  		
               
 
               	 
              
            	 
            
               Comments:
 
               		 
               		
               The ALIAS command can start anywhere after the first column.