Were the resources pointed to in my previous post not comprehensive enough? ... I don't blame you; the perlapi, perlxs, perlxstut, and perlguts (as well as perlembed) documents cover pretty advanced topics. Are you sure you want to pull back the curtain? The dragons haven't been fed lately, and they're looking both hungry and ill-tempered.

Perhaps you could describe what it is that you're trying to accomplish so we can provide more meaningful help.