Apply the MLI key via batch job

Q:

Is there any way to apply the MLI key via a batch job or some other automated mechanism?

A:

You should have a member called MLIUCNTL in your Install library that allows updating the password (PCODE) in batch. Example below:

//MLI141A  JOB ' ','SYSPROGMER',CLASS=A,NOTIFY=&SYSUID,MSGCLASS=X,
//         MSGLEVEL=(1,1),
//*
//MLIUCNTL EXEC PGM=MLIUCNTL
//STEPLIB  DD DSN=your.MLI141.LOADLIB,DISP=SHR
//SYSABEND DD SYSOUT=*
//VTACNTL  DD DSN=your.MLI141.MLICNTL,DISP=SHR
//SYSPRINT DD SYSOUT=*
//SYSIN    DD   *
PCODE=0000000000000000000000000000