To enable EZASOKET support you must either set the environment variable 
               ES_EZASOKET_SUPPORT=YES or take the following steps: 
               
            
 
            
             
               
               -  Connect to 
                  Enterprise Server Administration. 
                  
               
- In the table of servers on the Home page of 
                  Enterprise Server Administration, find the row for the server that you using as your CICS region, and click 
                  Edit in the left hand column. 
                  
               
- Click Properties > MSS. 
                  
               
- Check 
                  EZASOKET support. 
                  
               
- Click 
                  OK. 
                  
               
- If the enterprise server is started, please stop it. 
                  
               
- Restart the server.