Help with call command QCMDEXC

["Willie J. Moore" <WMoore@xxxxxxxxxxxxxxx>]

I have a program that I want to use the 'QCMDEXC' command.
When I try to call it I get the following error:
 "Cannot resolve to object qcmdexc. Type and Subtype X'0201' Authority X'0000'."

Here is a copy of the program:
Dparms            DS                                                
Dcmd                      1    255                                  
 /free                                                              
       cmd = 'RNM OBJ(''/pdf/2.pdf'') NEWOBJ(''test.pdf'')';        
 /end-free                                                          
C                   call      'qcmdexc'                             
C                   PARM                    cmd                     
C                   seton                                        lr 

Any help or pointers would be appreciated.

William Moore....