How do I apply maintenance to SYSTEM 2000 software and when does the
applied maintenance become effective?
You apply maintenance by:                          
  - using the IBM utility program IMASPZAP
      to apply zaps to load modules
  
  
 - using the IBM utility program IEBUPDTE                    
      to apply changes to source modules.
 
The problem fix comments usually contain instructions you need 
in order to make your changes effective, such as:
  
    - relink SYS2K and S2KPLI (not required in Version 1)
    
    
 - shut down and restart your Multi-User regions
    
    
 - recycle your CICS regions.