How to retrieve current OS400 targt release

I need to retrieve current OS400 target release level inside a CL
program. Any ideas?? I tried using the WRKLICINF command, but I don't
seem to have authority in all the AS400 boxes, where the program should
be implemented. I can't trust the DSPLICKEY command also because it
gives information about products not installed along with the products
installed.

Is there any other command or API that can be used??

Thanks,
Ganesh



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