how to make npc just like this?

[freakmastersx]

this npc is on DSSMU. i just wan't to make an npc to sell item.

[MentaL]

[mauka]

i think its calls OFFline store o something :) made by some russian mu developer, the base idea if memory dont change are riped from lineage2

however use search author of it released it here - try use keyword offline store or isomania

[freakmastersx]

problem solve ^_^