newbie question about chmod

hello experts ,

i like to run a little perl app , but it said always "Permission denied"

marxg4:~ marxg4$ /Users/marxg4/Desktop/dbeacon -a marc@let -n let.de -b 
ff1e::1:f00d:beac
-bash: /Users/marxg4/Desktop/dbeacon: Permission denied

when i type:

marxg4:~ marxg4$ chown -R marxg4 /Users/marxg4/Desktop/dbeacon
chown: /Users/marxg4/Desktop/dbeacon: Operation not permitted

"Operation not permitted"  ....what can i do ?

The programm needs no administrator rights.

regards

and thank you in advance

marc

--
   "If the doors of perception were cleansed,
   everything would appear to man as it is, infinite."
   William Blake, The Marriage of Heaven and Hell

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