No this is not illegal.. its just the game features u use

What u need:
*U need a good system with graphics card and 1 gb ram to effectively use
ur merc for auto hunting.
*The trick is not to use 1 char, but 2 chars for auto hunting.
*Better if both are mage merc, Kill is fast with mage and u dont need arrowz like archer mec.
Why:
* For Merc lvlup and drops(or Wz)
Warning:
* U can die , If u lag or ur merc run out of arrowz or if there is 2 much
mob.
*Put RC option to off, u dont want rc pked when ur away.
*Carry SS if necessary, so that u dont loose 50mill worth item trying to
earn 5 mill.
How:
*Place 2 chars in party, and place them on a map with atleast 1 mage
merc preferable.
*Set both merc to attak closest.
*Prefereble maps are, c1, c2 and r1. Reason: People dont come to these
maps, no1 hunts there.. those are the least populated maps with good
drops.
*Make sure ur invent is empty appart from TP scroll (and SS if required).
*Know about the monster ur going to hunt and have appropriate boxes.
*Say if ur going to hunt kastol (c1), make sure u got kardite ,stone,ner M,ner S boxes.
*I used to get min of 5 mill, on the worst days. and 3-4 ujs on best days+SQ..hehe

How to play 2 chars at a time:
*Make 2 seperate windows (XP) user accounts
*Start a3 in 1 user
*Do Start->logoff->(Hold shift) Switch User
*Login in to another account and play a3
*Both users should be on diff account.
*Now put both into party and enjoy playing 2 chars

When and Where:
* Do it after 12 at night when there are not many players and go to sleep.
* Make sure there are not many players arround where u auto hunt.
* Best map 1srank: C2, 2nd rank: C1 3d rank: R1.
* C2 is risky.. unless u got good mage merc.
* I can post the exact spont, but i prefer telling it to people in person..
coz if sm1 else cms to the spot u mite get pked.
HOw long:
* I used to do it 4-12 hrs a day.
What u get:
* 1 crystal a day depending on the type of monster/time u spend.
* 1 box of stone/hair/bone/scale depending on monster.
Enjoy
thanks,