diff --git a/game/src/main/org/apollo/game/message/impl/ItemOnNpcMessage.java b/game/src/main/org/apollo/game/message/impl/ItemOnNpcMessage.java
new file mode 100644
index 00000000..67e61827
--- /dev/null
+++ b/game/src/main/org/apollo/game/message/impl/ItemOnNpcMessage.java
@@ -0,0 +1,83 @@
+package org.apollo.game.message.impl;
+
+import org.apollo.net.message.Message;
+
+/**
+ * A {@link Message} sent by the client when a player uses an item on a npc.
+ *
+ * @author Lmctruck30
+ */
+public final class ItemOnNpcMessage extends Message {
+
+	/**
+	 * The id of the item used on the Npc.
+	 */
+	private final int id;
+
+	/**
+	 * The index of the Npc the item was used on.
+	 */
+	private final int index;
+
+	/**
+	 * Item slot from inventory.
+	 */
+	private final int slot;
+
+	/**
+	 * The id of the interface the item was in, before it was used.
+	 */
+	private final int interfaceId;
+
+	/**
+	 * Creates the ItemOnNpcMessage.
+	 *
+	 * @param id The id of the item used on the Npc.
+	 * @param index The index of the Npc the item was used on.
+	 * @param slot The slot the item was in, in the players inventory.
+	 * @param interfaceId The id of the interface the item was in, before it was used.
+	 */
+	public ItemOnNpcMessage(int id, int index, int slot, int interfaceId) {
+		this.id = id;
+		this.slot = slot;
+		this.index = index;
+		this.interfaceId = interfaceId;
+	}
+
+	/**
+	 * Gets the item id.
+	 *
+	 * @return The id.
+	 */
+	public int getId() {
+		return id;
+	}
+
+	/**
+	 * Gets the slot the item was in.
+	 *
+	 * @return The slot.
+	 */
+	public int getSlot() {
+		return slot;
+	}
+
+	/**
+	 * Gets the index of the Npc the item was used on.
+	 *
+	 * @return The index.
+	 */
+	public int getIndex() {
+		return index;
+	}
+
+	/**
+	 * Gets the id of the interface the item was in, before it was used.
+	 *
+	 * @return The interface id.
+	 */
+	public int getInterfaceId() {
+		return interfaceId;
+	}
+
+}
diff --git a/game/src/main/org/apollo/game/release/r317/ItemOnNpcMessageDecoder.java b/game/src/main/org/apollo/game/release/r317/ItemOnNpcMessageDecoder.java
new file mode 100644
index 00000000..6d9eefcd
--- /dev/null
+++ b/game/src/main/org/apollo/game/release/r317/ItemOnNpcMessageDecoder.java
@@ -0,0 +1,30 @@
+package org.apollo.game.release.r317;
+
+import org.apollo.game.message.impl.ItemOnNpcMessage;
+import org.apollo.net.codec.game.DataOrder;
+import org.apollo.net.codec.game.DataTransformation;
+import org.apollo.net.codec.game.DataType;
+import org.apollo.net.codec.game.GamePacket;
+import org.apollo.net.codec.game.GamePacketReader;
+import org.apollo.net.release.MessageDecoder;
+
+/**
+ * A {@link MessageDecoder} for the {@link ItemOnNpcMessage}.
+ *
+ * @author Lmctruck30
+ */
+public final class ItemOnNpcMessageDecoder extends MessageDecoder<ItemOnNpcMessage> {
+
+	@Override
+	public ItemOnNpcMessage decode(GamePacket packet) {
+		GamePacketReader reader = new GamePacketReader(packet);
+
+		int id = (int) reader.getUnsigned(DataType.SHORT, DataTransformation.ADD);
+		int index = (int) reader.getUnsigned(DataType.SHORT, DataTransformation.ADD);
+		int slot = (int) reader.getSigned(DataType.SHORT, DataOrder.LITTLE);
+		int interfaceId = (int) reader.getUnsigned(DataType.SHORT, DataTransformation.ADD);
+
+		return new ItemOnNpcMessage(id, index, slot, interfaceId);
+	}
+
+}
\ No newline at end of file
diff --git a/game/src/main/org/apollo/game/release/r317/Release317.java b/game/src/main/org/apollo/game/release/r317/Release317.java
index 00763714..dd2da433 100644
--- a/game/src/main/org/apollo/game/release/r317/Release317.java
+++ b/game/src/main/org/apollo/game/release/r317/Release317.java
@@ -61,12 +61,13 @@ public final class Release317 extends Release {
 	/**
 	 * The incoming packet lengths array.
 	 */
-	public static final int[] PACKET_LENGTHS = { 0, 0, 0, 1, -1, 0, 0, 0, 0, 0, // 0
+	public static final int[] PACKET_LENGTHS = {
+			0, 0, 0, 1, -1, 0, 0, 0, 0, 0, // 0
 			0, 0, 0, 0, 8, 0, 6, 2, 2, 0, // 10
 			0, 2, 0, 6, 0, 12, 0, 0, 0, 0, // 20
 			0, 0, 0, 0, 0, 8, 4, 0, 0, 2, // 30
 			2, 6, 0, 6, 0, -1, 0, 0, 0, 0, // 40
-			0, 0, 0, 12, 0, 0, 0, 0, 8, 0, // 50
+			0, 0, 0, 12, 0, 0, 0, 8, 8, 0, // 50
 			0, 8, 0, 0, 0, 0, 0, 0, 0, 0, // 60
 			6, 0, 2, 2, 8, 6, 0, -1, 0, 6, // 70
 			0, 0, 0, 0, 0, 1, 4, 6, 0, 0, // 80
@@ -136,6 +137,7 @@ public final class Release317 extends Release {
 		register(120, new FlashingTabClickedMessageDecoder());
 
 		register(53, new ItemOnItemMessageDecoder());
+		register(57, new ItemOnNpcMessageDecoder());
 		register(237, new MagicOnItemMessageDecoder());
 		register(249, new MagicOnPlayerMessageDecoder());
 
diff --git a/game/src/main/org/apollo/game/release/r377/ItemOnNpcMessageDecoder.java b/game/src/main/org/apollo/game/release/r377/ItemOnNpcMessageDecoder.java
new file mode 100644
index 00000000..8600b17b
--- /dev/null
+++ b/game/src/main/org/apollo/game/release/r377/ItemOnNpcMessageDecoder.java
@@ -0,0 +1,30 @@
+package org.apollo.game.release.r377;
+
+import org.apollo.game.message.impl.ItemOnNpcMessage;
+import org.apollo.net.codec.game.DataOrder;
+import org.apollo.net.codec.game.DataTransformation;
+import org.apollo.net.codec.game.DataType;
+import org.apollo.net.codec.game.GamePacket;
+import org.apollo.net.codec.game.GamePacketReader;
+import org.apollo.net.release.MessageDecoder;
+
+/**
+ * A {@link MessageDecoder} for the {@link ItemOnNpcMessage}.
+ *
+ * @author Major
+ */
+public final class ItemOnNpcMessageDecoder extends MessageDecoder<ItemOnNpcMessage> {
+
+	@Override
+	public ItemOnNpcMessage decode(GamePacket packet) {
+		GamePacketReader reader = new GamePacketReader(packet);
+
+		int index = (int) reader.getUnsigned(DataType.SHORT);
+		int id = (int) reader.getSigned(DataType.SHORT, DataOrder.LITTLE);
+		int widget = (int) reader.getUnsigned(DataType.SHORT,  DataOrder.LITTLE, DataTransformation.ADD);
+		int slot = (int) reader.getUnsigned(DataType.SHORT);
+
+		return new ItemOnNpcMessage(id, index, slot, widget);
+	}
+
+}
diff --git a/game/src/main/org/apollo/game/release/r377/Release377.java b/game/src/main/org/apollo/game/release/r377/Release377.java
index 71460504..47464f5f 100644
--- a/game/src/main/org/apollo/game/release/r377/Release377.java
+++ b/game/src/main/org/apollo/game/release/r377/Release377.java
@@ -135,6 +135,7 @@ public final class Release377 extends Release {
 		register(119, new FlashingTabClickedMessageDecoder());
 
 		register(1, new ItemOnItemMessageDecoder());
+		register(57, new ItemOnNpcMessageDecoder());
 		register(36, new MagicOnItemMessageDecoder());
 		register(31, new MagicOnPlayerMessageDecoder());
 		register(104, new MagicOnNpcMessageDecoder());