Thanks for the reply annie.
but for some reasons the both npc is not appearing on my server.
[Error]: npc_parsesrcfile: Unknown syntax in file 'npc/custom/surerefiner.txt', line '1'. Stopping...
* w1=prontera,155,190,6 script Refiner 899,{
* w2=
* w3=
* w4=
and
[Error]: npc_parsesrcfile: Unknown syntax in file 'npc/custom/itemexchange.txt', line '1'. Stopping...
* w1=prontera,150,190,6 script sdfsdfsdfds 899,{
* w2=
* w3=
* w4=