All data below are based on opinion's subject.
Since (about) 2010, eA no longer support Sakexe client, because there was a new client called 'RagRE'.and year by year, then came 'Ragexe'.
I was a Herc Emu fanboy, since rA rolled their Core Dev, and BOOM. many bugs show up. a lot.
After that, i found Herc, and see their Core Devs are sooo awesome.
In that year (2010+), many people are brainstorming for future client that used in official server.
Server has 'future update', lot of players.
But now, in my region, it was no longer 'interested point'.
I was asking in them, WHY?
Almost 2 years i do research, and most of them answered : "Is this RO?", "New client made me confused", and many more. same point.
That's why now ppls are build CLASSIC SERVER. right ?
So, if you asking "Hey why the f*** u want to use sakexe client?"
Simple answer : "Nostalgic" or "Because that client is so simple".
I'm feel sorry if i was disrupting Herc community by created this 2 topic
http://herc.ws/board/topic/12362-asking-for-herc-client-support/
https://github.com/HerculesWS/Hercules/issues/1436
Yea, i just want to research. and now i 'think' i got the answer.
Now, all emulator only has stable packet for RagRE and Ragexe, but they are separated, (to prevent packet conflict).
My suggestion, and i hope it will realize, to make back Sakexe packet, and separate it too. (maybe old eA can be refrence).
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I'm sorry i talked too much, and cannot help for the code, bcz i'm not a programmer.
I want Herc become best RO emu, that support all client-side.
Thankyou, and sorry for my REALLY BAD ENGLISH.