I don't think so. On aCis it's inside classes folder, on frozen not sure, never used it.. Probably skills_tree.sql or some other file inside /data/... Blind guess :P
Probably you are talking about this topic, don't you ?
http://www.maxcheaters.com/topic/81814-guidehow-to-make-your-own-custom-weapon-and-fix-the-glow-and-effect/
Basically you have to add a check @ onTarget method, like if target instanceof L2Playable || L2NpcInstance then return. Ofc you need a check about the zone first if isInsideZone(ZoneId.JAIL) or w/e method is on your pack (probably frozen) :P
Do not spam.
Switch the system folder, the initialize did not helped me as well. So, I switched to other system folder and everything was fine.. So, try to do the same. :)
Keep in mind that I'm not sure if it's about User.ini, it's just a guess :D
What chronicle it is? Post here your new added lines and your itemname-e.dat, so we can see if it's all correct :P
I had similar situation few weeks ago, a friend of mine couldn't save the file (error while saving) and I did it w/o any problem, using his code lines ofc. He.. facepalmed :D
Client related, moved.
Make sure id is the same like they said. Also in past I experienced that when I did paste in "wrong" place. Since its separated like weapons/armors/etc. I doubt thats the case, but you can try. Or you edited the file wrong :P
Use options => Initialize. Surely the htm is "outside" of the window. The same thing happened to me, but with pet window and I had to switch the system folder (user.ini probably ?).