[Is it possible to change Dark Knight sprite without Custom Job Patch?]

This is my first post so I apologize if I do not include enough but am happy to provide anything needed to help solve this issue. I am using a 2021-11-17 client (I understand maybe what I am trying to do just won't work). I would like change the sprite of the Dark Knight if possible. I tried applying the custom jobs patching using warp (because I have read people meeting some success with that) but when I try starting the client nothing pops up (no error messages or anything). 

 

If there is another way I would be happy to learn and can provide more details when needed. Thanks for taking the time to read. Cheers. 

[Ragnarok Online complete offline server & client pack 2019 | Make your RO server in less than 5 minutes]

Hey Anacondaqq,

I have been using your package for a while and I just wanted to give you a big thank you. It has been the stepping stone for me to learn a lot in the past few months. This is really the perfect tool to start learning how to work with this site.

 

Thanks again!