Looks like a good solution for me, so I've tried it out (on a Windows machine) with a simple code file (holding : print "hello compiled world";) and the command C:\>perl -MO=Bytecode compiled.pl > result.pl. This result in a series of errors : 1: no such instruction "" ... 110: no such instruction "" There were 110 assembly errors Excuse me if I'm wrong, but the documentation about ByteLoader is rather skinny. Is there a good source for information about this way of working out there? All help is welcome