//EXTNVTOC JOB CLASS=A,MSGCLASS=X,MSGLEVEL=(1,1),NOTIFY=&SYSUID, 
//   REGION=0M                                                   
//STEP01    EXEC  PGM=ICKDSF                                     
//VOLDD     DD DISP=SHR,UNIT=3390,VOL=SER=USER10                 
//SYSPRINT  DD SYSOUT=*                                          
//SYSIN     DD *                                                 
 REFORMAT DDNAME(VOLDD) VERIFY(USER10) EXTVTOC(28) EXTINDEX(16)  
/*