[zokemon]

Deleting the files from the server won't remove the npcs unless you restart the Gserver and/or NPC Server before re-uploading them, I think.

Best method I suggest is to just script something that checks the level list of levels served by the npc server (using clientrc functions) and then have the npc server say "/clearnpcs whatever" for each level in the list.

If you do this, make sure to delete the script after you are done! This could be very malicious to your server and should only remain on their when you are using it.