diff --git a/Antunnel/README.md b/Antunnel/README.md
index c319299..e9288ab 100644
--- a/Antunnel/README.md
+++ b/Antunnel/README.md
@@ -5,6 +5,7 @@ talk to server side applications via the [`antd-tunnel-pligin`](https://github.c
 using a single websocket API.
 
 ## Changes log
+- v0.2.0-b User multiple bytes interger network byte order in frame format
 - v0.1.9-b Use the new client size minima frame format (reduces frame overhead)
 - v0.1.4-a Reduce frame overhead
 - v0.1.3-a Remove magic number in the frame to reduce frame overhead
diff --git a/Antunnel/build/debug/README.md b/Antunnel/build/debug/README.md
index c319299..e9288ab 100644
--- a/Antunnel/build/debug/README.md
+++ b/Antunnel/build/debug/README.md
@@ -5,6 +5,7 @@ talk to server side applications via the [`antd-tunnel-pligin`](https://github.c
 using a single websocket API.
 
 ## Changes log
+- v0.2.0-b User multiple bytes interger network byte order in frame format
 - v0.1.9-b Use the new client size minima frame format (reduces frame overhead)
 - v0.1.4-a Reduce frame overhead
 - v0.1.3-a Remove magic number in the frame to reduce frame overhead
diff --git a/Antunnel/build/debug/main.js b/Antunnel/build/debug/main.js
index a60d231..67a3c92 100644
--- a/Antunnel/build/debug/main.js
+++ b/Antunnel/build/debug/main.js
@@ -1 +1 @@
-(function(){var e,n,t,s,i;(t=class e{constructor(){this.header={sid:0,cid:0,type:0,size:0},this.data=void 0}as_raw(){var n,t,s;return s=5+this.header.size,(n=new Uint8Array(s))[0]=this.header.type,t=e.bytes_of(this.header.cid),n.set(t,1),t=e.bytes_of(this.header.sid),n.set(t,3),this.data&&n.set(this.data,5),n.buffer}}).decode=function(e){return new Promise((function(n,s){var i;return i=new t,!e||e.length<5?s("Invalid message format"):(i.header.type=e[0],i.header.cid=t.int_from(e,1),i.header.sid=t.int_from(e,3),i.header.size=e.length-5,i.data=e.slice(5,5+i.header.size),n(i))}))},t.bytes_of=function(e,n){var t;return 4!==n&&(n=2),(t=new Uint8Array(n))[0]=255&e,e>>=8,t[1]=255&e,4!==n||(e>>=8,t[2]=255&e,e>>=8,t[3]=255&e),t},t.int_from=function(e,n,t){return 4!==t?e[n]|e[n+1]<<8:e[n]|e[n+1]<<8|e[n+2]<<16|e[n+3]<<24},t.OK=0,t.ERROR=1,t.DATA=6,t.CLOSE=5,t.SUBSCRIBE=2,t.UNSUBSCRIBE=3,t.CTRL=7,t.PING=8,s=class{constructor(e){this.channel=e,this.id=void 0,this.channel_id=void 0,this.onmessage=void 0,this.onerror=void 0,this.onopen=void 0,this.onclose=void 0,this.tunnel=void 0,this.is_opened=!1}send(e,n){if(this.tunnel){if(this.is_opened)return this.tunnel.send(this.genmsg(e,n));this.onerror&&this.onerror("Channel is not opened yet")}else this.onerror&&this.onerror("Tunnel is not opened")}genmsg(e,n){var s;return(s=new t).header.sid=this.id,s.header.cid=this.channel_id,s.header.type=e,s.header.size=n?n.length:0,s.data=n,s}close(e){if(this.is_opened=!1,this.tunnel)return this.tunnel.unsubscribe(this,e)}},e=class{constructor(e){this.uri=e,this.socket=void 0,this.pending={},this.subscribers={},this.onclose=void 0}ready(){return new Promise((e,n)=>this.uri?void 0!==this.socket?e():(console.log("Connect to "+this.uri),this.socket=new WebSocket(this.uri),this.socket.binaryType="arraybuffer",this.socket.onmessage=e=>this.process(e),this.socket.onclose=e=>{var n,t,s,i;for(n in this.socket=void 0,t=this.pending)(i=t[n]).tunnel=void 0,i.onclose&&i.onclose();for(n in s=this.subscribers)(i=s[n]).tunnel=void 0,i.is_opened=!1,i.onclose&&i.onclose();if(this.pending={},this.subscribe={},this.onclose())return this.onclose()},this.socket.onerror=e=>{var n,t,s,i,r;for(n in t=this.pending)(r=t[n]).onerror&&r.onerror(e.toString());for(n in i=[],s=this.subscribers)(r=s[n]).onerror&&i.push(r.onerror(e.toString()));return i},this.socket.onopen=n=>e()):n())}process(e){return t.decode(new Uint8Array(e.data)).then(e=>{var n,s;switch(n=(e,n)=>{var t;if(!(t=this.pending[e.header.sid]))return(t=this.subscribers[e.header.sid])&&t[n]?t[n](e):void 0;t[n]&&t[n](e)},e.header.type){case t.OK:if(!(s=this.pending[e.header.sid]))return n(e,"onmessage");if(delete this.pending[e.header.sid],s.id=t.int_from(e.data,0),s.channel_id=e.header.cid,this.subscribers[s.id]=s,s.is_opened=!0,s.onopen)return s.onopen();break;case t.DATA:return n(e,"onmessage");case t.CTRL:return n(e,"onctrl");case t.ERROR:return n(e,"onerror");case t.UNSUBSCRIBE:if(!(s=this.subscribers[e.header.sid]))return;return s.close(!0);case t.PING:break;default:return console.error(`Message of type ${e.header.type} is unsupported`,e)}}).catch(e=>{var n,t,s,i;for(n in t=this.pending)(i=t[n]).onerror&&i.onerror(e);for(n in s=this.subscribers)(i=s[n]).onerror&&i.onerror(e);return console.log(e)})}subscribe(e){return this.ready().then(()=>{for(e.tunnel=this,e.id=Math.floor(1e3*Math.random())+1;this.subscribers[e.id]||this.pending[e.id];)e.id=Math.floor(1e3*Math.random())+1;return this.pending[e.id]=e,this.send(e.genmsg(t.SUBSCRIBE,(new TextEncoder).encode(e.channel)))}).catch((function(n){if(e.onerror)return e.onerror(n.toString())}))}unsubscribe(e,n){return this.ready().then(()=>{if(this.subscribers[e.id])return n||this.send(e.genmsg(t.UNSUBSCRIBE,void 0)),e.onclose&&e.onclose(),delete this.subscribers[e.id],e.tunnel=void 0,e.is_opened=!1}).catch((function(n){if(e.onerror)return e.onerror(n.toString())}))}send(e){return this.socket.send(e.as_raw())}close(){if(console.log("Close connection to "+this.uri),this.socket&&this.socket.close(),this.onclose())return this.onclose()}},(i=this).Antunnel||(i.Antunnel={tunnel:void 0,init:function(n){return new Promise((function(t,s){return i.Antunnel.tunnel?t(i.Antunnel.tunnel):(i.Antunnel.tunnel=new e(n),i.Antunnel.tunnel.onclose=function(){return i.Antunnel.tunnel=void 0},i.Antunnel.tunnel.ready().then((function(){return t(i.Antunnel.tunnel)})).catch((function(e){return s(e)})))}))},Subscriber:s,Msg:t}),n=class extends OS.application.BaseService{constructor(e){super("AntunnelService",e),this.text=__("Tunnel"),this.iconclass="fa fa-close",this.is_connect=!1,this.nodes=[{text:__("Connect"),id:1},{text:__("Disconnect"),id:2},{text:__("Enter uri"),id:3},{text:__("Exit"),id:4}],this.onchildselect=e=>this.action(e)}init(){return this.watch(1500,()=>{var e;if(e=!1,void 0!==Antunnel.tunnel&&(e=!0),e!==this.is_connect)return this.is_connect=e,this.iconclass="fa fa-circle",this.is_connect||(this.iconclass="fa fa-close"),this.update()}),OS.onexit("cleanupAntunnel",()=>new Promise((e,n)=>(Antunnel.tunnel&&Antunnel.tunnel.close(),this.quit(),e(!0))))}action(e){var n;switch(n=()=>this._gui.openDialog("PromptDialog",{title:__("Tunnel uri"),label:__("Please enter tunnel uri"),value:"wss://localhost/tunnel"}).then(e=>{if(e&&""!==e)return this.systemsetting.system.tunnel_uri=e,this.start()}),e.data.item.data.id){case 1:if(this.is_connect)return;return this.systemsetting.system.tunnel_uri?this.start():n();case 2:if(Antunnel.tunnel)return Antunnel.tunnel.close();break;case 3:return Antunnel.tunnel&&Antunnel.tunnel.close(),n();case 4:return Antunnel.tunnel&&Antunnel.tunnel.close(),this.quit()}}start(){if(this.systemsetting.system.tunnel_uri&&!Antunnel.tunnel)return Antunnel.init(this.systemsetting.system.tunnel_uri).then(e=>this.notify(__("Tunnel now connected to the server at: {0}",this.systemsetting.system.tunnel_uri))).catch(e=>(Antunnel.tunnel&&Antunnel.tunnel.close(),this.error(__("Unable to connect to the tunnel: {0}",e.toString()),e)))}awake(){}},this.OS.register("AntunnelService",n)}).call(this);
\ No newline at end of file
+(function(){var e,n,t,s,i;(t=class e{constructor(){this.header={sid:0,cid:0,type:0,size:0},this.data=void 0}as_raw(){var n,t,s;return s=5+this.header.size,(n=new Uint8Array(s))[0]=this.header.type,t=e.bytes_of(this.header.cid),n.set(t,1),t=e.bytes_of(this.header.sid),n.set(t,3),this.data&&n.set(this.data,5),n.buffer}}).decode=function(e){return new Promise((function(n,s){var i;return i=new t,!e||e.length<5?s("Invalid message format"):(i.header.type=e[0],i.header.cid=t.int_from(e,1),i.header.sid=t.int_from(e,3),i.header.size=e.length-5,i.data=e.slice(5,5+i.header.size),n(i))}))},t.bytes_of=function(e,n){var t;return 4!==n&&(n=2),t=new Uint8Array(n),2===n?(t[1]=255&e,e>>=8,t[0]=255&e,t):(t[3]=255&e,e>>=8,t[2]=255&e,e>>=8,t[1]=255&e,e>>=8,t[0]=255&e,t)},t.int_from=function(e,n,t){return 4!==t?e[n+1]|e[n]<<8:e[n+3]|e[n+2]<<8|e[n+1]<<16|e[n]<<24},t.OK=0,t.ERROR=1,t.DATA=6,t.CLOSE=5,t.SUBSCRIBE=2,t.UNSUBSCRIBE=3,t.CTRL=7,t.PING=8,s=class{constructor(e){this.channel=e,this.id=void 0,this.channel_id=void 0,this.onmessage=void 0,this.onerror=void 0,this.onopen=void 0,this.onclose=void 0,this.tunnel=void 0,this.is_opened=!1}send(e,n){if(this.tunnel){if(this.is_opened)return this.tunnel.send(this.genmsg(e,n));this.onerror&&this.onerror("Channel is not opened yet")}else this.onerror&&this.onerror("Tunnel is not opened")}genmsg(e,n){var s;return(s=new t).header.sid=this.id,s.header.cid=this.channel_id,s.header.type=e,s.header.size=n?n.length:0,s.data=n,s}close(e){if(this.is_opened=!1,this.tunnel)return this.tunnel.unsubscribe(this,e)}},e=class{constructor(e){this.uri=e,this.socket=void 0,this.pending={},this.subscribers={},this.onclose=void 0}ready(){return new Promise((e,n)=>this.uri?void 0!==this.socket?e():(console.log("Connect to "+this.uri),this.socket=new WebSocket(this.uri),this.socket.binaryType="arraybuffer",this.socket.onmessage=e=>this.process(e),this.socket.onclose=e=>{var n,t,s,i;for(n in this.socket=void 0,t=this.pending)(i=t[n]).tunnel=void 0,i.onclose&&i.onclose();for(n in s=this.subscribers)(i=s[n]).tunnel=void 0,i.is_opened=!1,i.onclose&&i.onclose();if(this.pending={},this.subscribe={},this.onclose())return this.onclose()},this.socket.onerror=e=>{var n,t,s,i,r;for(n in t=this.pending)(r=t[n]).onerror&&r.onerror(e.toString());for(n in i=[],s=this.subscribers)(r=s[n]).onerror&&i.push(r.onerror(e.toString()));return i},this.socket.onopen=n=>e()):n())}process(e){return t.decode(new Uint8Array(e.data)).then(e=>{var n,s;switch(n=(e,n)=>{var t;if(!(t=this.pending[e.header.sid]))return(t=this.subscribers[e.header.sid])&&t[n]?t[n](e):void 0;t[n]&&t[n](e)},e.header.type){case t.OK:if(!(s=this.pending[e.header.sid]))return n(e,"onmessage");if(delete this.pending[e.header.sid],s.id=t.int_from(e.data,0),s.channel_id=e.header.cid,this.subscribers[s.id]=s,s.is_opened=!0,s.onopen)return s.onopen();break;case t.DATA:return n(e,"onmessage");case t.CTRL:return n(e,"onctrl");case t.ERROR:return n(e,"onerror");case t.UNSUBSCRIBE:if(!(s=this.subscribers[e.header.sid]))return;return s.close(!0);case t.PING:break;default:return console.error(`Message of type ${e.header.type} is unsupported`,e)}}).catch(e=>{var n,t,s,i;for(n in t=this.pending)(i=t[n]).onerror&&i.onerror(e);for(n in s=this.subscribers)(i=s[n]).onerror&&i.onerror(e);return console.log(e)})}subscribe(e){return this.ready().then(()=>{for(e.tunnel=this,e.id=Math.floor(1e3*Math.random())+1;this.subscribers[e.id]||this.pending[e.id];)e.id=Math.floor(1e3*Math.random())+1;return this.pending[e.id]=e,this.send(e.genmsg(t.SUBSCRIBE,(new TextEncoder).encode(e.channel)))}).catch((function(n){if(e.onerror)return e.onerror(n.toString())}))}unsubscribe(e,n){return this.ready().then(()=>{if(this.subscribers[e.id])return n||this.send(e.genmsg(t.UNSUBSCRIBE,void 0)),e.onclose&&e.onclose(),delete this.subscribers[e.id],e.tunnel=void 0,e.is_opened=!1}).catch((function(n){if(e.onerror)return e.onerror(n.toString())}))}send(e){return this.socket.send(e.as_raw())}close(){if(console.log("Close connection to "+this.uri),this.socket&&this.socket.close(),this.onclose())return this.onclose()}},(i=this).Antunnel||(i.Antunnel={tunnel:void 0,init:function(n){return new Promise((function(t,s){return i.Antunnel.tunnel?t(i.Antunnel.tunnel):(i.Antunnel.tunnel=new e(n),i.Antunnel.tunnel.onclose=function(){return i.Antunnel.tunnel=void 0},i.Antunnel.tunnel.ready().then((function(){return t(i.Antunnel.tunnel)})).catch((function(e){return s(e)})))}))},Subscriber:s,Msg:t}),n=class extends OS.application.BaseService{constructor(e){super("AntunnelService",e),this.text=__("Tunnel"),this.iconclass="fa fa-close",this.is_connect=!1,this.nodes=[{text:__("Connect"),id:1},{text:__("Disconnect"),id:2},{text:__("Enter uri"),id:3},{text:__("Exit"),id:4}],this.onchildselect=e=>this.action(e)}init(){return this.watch(1500,()=>{var e;if(e=!1,void 0!==Antunnel.tunnel&&(e=!0),e!==this.is_connect)return this.is_connect=e,this.iconclass="fa fa-circle",this.is_connect||(this.iconclass="fa fa-close"),this.update()}),OS.onexit("cleanupAntunnel",()=>new Promise((e,n)=>(Antunnel.tunnel&&Antunnel.tunnel.close(),this.quit(),e(!0))))}action(e){var n;switch(n=()=>this._gui.openDialog("PromptDialog",{title:__("Tunnel uri"),label:__("Please enter tunnel uri"),value:"wss://localhost/tunnel"}).then(e=>{if(e&&""!==e)return this.systemsetting.system.tunnel_uri=e,this.start()}),e.data.item.data.id){case 1:if(this.is_connect)return;return this.systemsetting.system.tunnel_uri?this.start():n();case 2:if(Antunnel.tunnel)return Antunnel.tunnel.close();break;case 3:return Antunnel.tunnel&&Antunnel.tunnel.close(),n();case 4:return Antunnel.tunnel&&Antunnel.tunnel.close(),this.quit()}}start(){if(this.systemsetting.system.tunnel_uri&&!Antunnel.tunnel)return Antunnel.init(this.systemsetting.system.tunnel_uri).then(e=>this.notify(__("Tunnel now connected to the server at: {0}",this.systemsetting.system.tunnel_uri))).catch(e=>(Antunnel.tunnel&&Antunnel.tunnel.close(),this.error(__("Unable to connect to the tunnel: {0}",e.toString()),e)))}awake(){}},this.OS.register("AntunnelService",n)}).call(this);
\ No newline at end of file
diff --git a/Antunnel/build/debug/package.json b/Antunnel/build/debug/package.json
index b95143f..4798e61 100644
--- a/Antunnel/build/debug/package.json
+++ b/Antunnel/build/debug/package.json
@@ -9,7 +9,7 @@
         "author": "Xuan Sang LE",
         "email": "xsang.le@lxsang.me"
     },
-    "version":"0.1.9-b",
+    "version":"0.2.0-b",
     "category":"Library",
     "iconclass":"fa fa-adn",
     "mimes":["none"],
diff --git a/Antunnel/build/release/Antunnel.zip b/Antunnel/build/release/Antunnel.zip
index a7c2eb2..6d23f15 100644
Binary files a/Antunnel/build/release/Antunnel.zip and b/Antunnel/build/release/Antunnel.zip differ
diff --git a/Antunnel/coffees/Antunnel.coffee b/Antunnel/coffees/Antunnel.coffee
index 73f0e7b..aa291e7 100644
--- a/Antunnel/coffees/Antunnel.coffee
+++ b/Antunnel/coffees/Antunnel.coffee
@@ -39,19 +39,23 @@ Msg.decode = (raw) ->
 Msg.bytes_of = (x,s) ->
     s = 2 unless s is 4
     bytes=new Uint8Array(s)
-    bytes[0]=x & (255)
-    x=x>>8
-    bytes[1]=x & (255)
-    return bytes unless s is 4
+    if s is 2
+        bytes[1]=x & (255)
+        x=x>>8
+        bytes[0]=x & (255)
+        return bytes
+    bytes[3]=x & (255)
     x=x>>8
     bytes[2]=x & (255)
     x=x>>8
-    bytes[3]=x & (255)
+    bytes[1]=x & (255)
+    x=x>>8
+    bytes[0]=x & (255)
     return bytes
 
 Msg.int_from = (bytes, offset, size) ->
-    return (bytes[offset] | (bytes[offset+1]<<8)) unless size is 4
-    return (bytes[offset] | (bytes[offset+1]<<8) | (bytes[offset+2]<<16) | (bytes[offset+3] << 24))
+    return (bytes[offset+1] | (bytes[offset]<<8)) unless size is 4
+    return (bytes[offset+3] | (bytes[offset+2]<<8) | (bytes[offset+1]<<16) | (bytes[offset] << 24))
 
 Msg.OK = 0
 Msg.ERROR = 1
diff --git a/Antunnel/package.json b/Antunnel/package.json
index b95143f..4798e61 100644
--- a/Antunnel/package.json
+++ b/Antunnel/package.json
@@ -9,7 +9,7 @@
         "author": "Xuan Sang LE",
         "email": "xsang.le@lxsang.me"
     },
-    "version":"0.1.9-b",
+    "version":"0.2.0-b",
     "category":"Library",
     "iconclass":"fa fa-adn",
     "mimes":["none"],
diff --git a/packages.json b/packages.json
index d5471a2..a3ae639 100644
--- a/packages.json
+++ b/packages.json
@@ -55,7 +55,7 @@
 		"description": "https://raw.githubusercontent.com/lxsang/antosdk-apps/master/Antunnel/README.md",
 		"category": "Library",
 		"author": "Xuan Sang LE",
-		"version": "0.1.9-b",
+		"version": "0.2.0-b",
 		"dependencies": [],
 		"download": "https://raw.githubusercontent.com/lxsang/antosdk-apps/master/Antunnel/build/release/Antunnel.zip"
 	},