TSO/E provides the TSOLIB command, which lets users dynamically link load module libraries of their choice from within their TSO/E sessions. TSO/E also provides initialization and termination exits that you can use to customize the TSOLIB command. The initialization exit can restrict users from using the TSOLIB command, can change operands supplied by the user, or pass the address of a new command buffer. The termination exit can perform clean-up processing, such as releasing storage obtained by the initialization exit. For more information, see Customizing the TSOLIB command.