Problem:

How can the internal reader be started to submit via a CICS batch execution?

Scenario - An application that writes a TD EXTRAPARTION QUEUE in which a program writes the MVS/JCL which is to be executed.  

How is it possible to execute the JCL which is contained in the queue?

Resolution:

The only way to start INTRDR is via a batch job.

It is necessary to have some JCL, that executes a CICS batch program.

The queue output of this program should be something like:

//QUEOUT  DD  SYSOUT=(*,INTRDR)

This means that the output of the program will be accepted automatically as an input to INTRDR.