diff --git a/app.js b/app.js
index 9d0121a..3641a28 100644
--- a/app.js
+++ b/app.js
@@ -67,7 +67,7 @@ var console = {
 };
 
 if (typeof(CreateObject) !== "function") {
-    var CreateObject = function(progId, serverName) {
+    var CreateObject = function(progId, serverName, callback) {
         var progIds = [];
         var _CreateObject = function(p, s) {
             if (typeof(WScript) !== "undefined") {
@@ -85,7 +85,11 @@ if (typeof(CreateObject) !== "function") {
 
         for (var i = 0; i < progIds.length; i++) {
             try {
-                return _CreateObject(progIds[i], serverName);
+                var obj = _CreateObject(progIds[i], serverName);
+                if (typeof(callback) === "function") {
+                    callback(obj, progIds[i]);
+                }
+                return obj;
             } catch (e) {
                 console.error(e.message);
             };
diff --git a/app/index.js b/app/index.js
index b64ccda..0f20b25 100644
--- a/app/index.js
+++ b/app/index.js
@@ -1,5 +1,5 @@
 ////////////////////////////////////////////////////////////////////////
-// WebPage
+// index.js
 ////////////////////////////////////////////////////////////////////////
 var CONFIG = require("lib/config");
 var FILE = require("lib/file");
@@ -10,239 +10,105 @@ var SHELL = require("lib/shell");
 var LDPlayer = require("lib/ldplayer");
 var NoxPlayer = require("lib/noxplayer");
 
-var apiUrl = CONFIG.readConfig("/ApiUrl").first().getText();
 var token, userId;
+var apiUrl = CONFIG.readConfig("/ApiUrl").first().getText();
 
 var servers = [];
 var applications = [];
 
-var assignStaticIP = function() {
-    SHELL.runWindow("cscript app.js shadow");
-};
-
-var showLocalApplications = function() {
-    var localApplications = [];
-
-    // LDPlayer
-    var LDPList = LDPlayer.getList();
-    for (var i = 0; i < LDPList.length; i++) {
-        localApplications.push({
-            name: "LDPlayer",
-            uniqueId: LDPList[i].title
-        });
-    }
-
-    // NoxPlayer
-    var NoxPList = NoxPlayer.getList();
-    for (var i = 0; i < NoxPList.length; i++) {
-        localApplications.push({
-            name: "NoxPlayer",
-            uniqueId: NoxPList[i].hostname
-        });
-    }
-    
-    // Chrome
-    localApplications.push({
-        name: "Chrome",
-        uniqueId: "John"
-    });
-    localApplications.push({
-        name: "Chrome",
-        uniqueId: "James"
-    });
-    localApplications.push({
-        name: "Chrome",
-        uniqueId: "Jasmine"
-    });
-
-    var template = $("#listview_applications .template");
-    for (var i = 0; i < servers.length; i++) {
-        template.find("select").append($("<option/>").attr({
-            value: servers[i].data.id
-        }).text(servers[i].data.ipaddress));
-    }
-
-    for (var i = 0; i < localApplications.length; i++) {
-        var serverId = "";
+var getAssignedServers = function() {
+    var assignedServers = [];
+    var onSuccess = function(res) {
+        return;
         
-        var entry = template.clone();
-        entry.find("a.title").text(localApplications[i].uniqueId + " (" + localApplications[i].name + ")");
-        entry.find("select").data("application-name", localApplications[i].name);
-        entry.find("select").data("application-unique-id", localApplications[i].uniqueId);
-
-        for (var k = 0; k < applications.length; k++) {
-            if (applications[k].name == localApplications[i].name
-                && applications[k].uniqueId == localApplications[i].uniqueId
-                && applications[k].createdBy == userId)
-            {
-                entry.find("select").data("application-id", applications[i].id);
-                serverId = applications[k].server;
-                break;
+        for (var i = 0; i < res.data.length; i++) {
+            if (res.data[i].assigned_to == userId) {
+                assignedServers.push(res.data[i].server);
             }
         }
+    };
 
-        entry.find("select").change(function() {
-            if ($(this).val() != "") {
-                var data = {
-                    "status": "published",
-                    "name": $(this).data("application-name"),
-                    "unique_id": $(this).data("application-unique-id"),
-                    "created_by": userId,
-                    "server": $(this).val()
-                };
-                var applicationId = $(this).data("application-id");
-
-                var req, res;
-                var onSuccess = function(res) {
-                    if ("error" in res) {
-                        console.error(res.error.message);
-                    } else {
-                        console.log("반영되었습니다.");
-                    }
-                };
-                
-                if (applicationId) {
-                    req = $.ajax({
-                        type: "PATCH",
-                        url: apiUrl + "/netsolid/items/applications/" + applicationId,
-                        data: JSON.stringify(data),
-                        contentType: 'application/json-patch+json',
-                        success: onSuccess
-                    });
-                } else {
-                    req = HTTP.post(apiUrl + "/netsolid/items/applications", JSON.stringify(data), {
-                        "Content-Type": "application/json"
-                    });
-                    res = JSON.parse(req.responseText);
-                    onSuccess(res);
-                }
-
-                showApplications();
-            }
-        }).val(serverId);
-        entry.appendTo("#listview_applications");
-    }
-
-    template.css("display", "none");
+    HTTP.create()
+        .setHeaders({
+            "Content-Type": "application/x-www-form-urlencoded",
+            "Authorization": "bearer " + token,
+            //"Pragma": "no-cache",
+            //"Cache-Control": "no-cache",
+            "If-Modified-Since": "Sat, 1 Jan 2000 00:00:00 GMT"
+        })
+        //.get(apiUrl + "/netsolid/items/assignedservers", onSuccess)
+    ;
 };
 
-var showApplications = function() {
-    var xmlStrings = [];
+var getMyServers = function() {
+    var assignedServers = getAssignedServers();
+    
+    return;
+    
+    
+    var onSuccess = function(res) {
+        var template = $("#listview_servers .template");
 
-    var req = HTTP.get(apiUrl + "/netsolid/items/applications", "", {
-        "Content-Type": "application/x-www-form-urlencoded",
-        "Authorization": "bearer " + token,
-        //"Pragma": "no-cache",
-        //"Cache-Control": "no-cache",
-        "If-Modified-Since": "Sat, 1 Jan 2000 00:00:00 GMT"
-    });
-    var res = JSON.parse(req.responseText);
-
-    xmlStrings.push('<?xml version="1.0" encoding="UTF-8"?>');
-    xmlStrings.push("<StaticIP>");
-    for (var i = 0; i < res.data.length; i++) {
-        xmlStrings.push("<Item>");
-        xmlStrings.push("<Name>" + res.data[i].name + "</Name>");
-        xmlStrings.push("<UniqueID>" + res.data[i].unique_id + "</UniqueID>");
-        for (var k = 0; k < servers.length; k++) {
-            if (servers[k].data.id == res.data[i].server) {
-                xmlStrings.push("<IPAddress>" + servers[k].data.ipaddress + "</IPAddress>");
-                applications.push({
-                    id: res.data[i].id,
-                    name: res.data[i].name,
-                    uniqueId: res.data[i].unique_id,
-                    server: res.data[i].server,
-                    ipAddress: servers[k].data.ipaddress,
-                    createdBy: userId
+        for (var i = 0; i < res.data.length; i++) {
+            if (assignedServers.indexOf(res.data[i].id) > -1) {
+                var entry = template.clone();
+                entry.find("a.title").text(res.data[i].ipaddress);
+                entry.find("div.description").text(res.data[i].name);
+                entry.appendTo("#listview_servers");
+                
+                servers.push({
+                    "data": res.data[i],
+                    "entry": entry
                 });
             }
         }
-        xmlStrings.push("</Item>");
-    }
-    xmlStrings.push("</StaticIP>");
-
-    FILE.writeFile("staticip.xml", xmlStrings.join("\r\n"), "utf-8");
-};
-
-var getAssignedServers = function() {
-    var assignedServers = [];
-
-    var req = HTTP.get(apiUrl + "/netsolid/items/assignedservers", "", {
-        "Content-Type": "application/x-www-form-urlencoded",
-        "Authorization": "bearer " + token,
-        //"Pragma": "no-cache",
-        //"Cache-Control": "no-cache",
-        "If-Modified-Since": "Sat, 1 Jan 2000 00:00:00 GMT"
-    });
-    
-    var res = JSON.parse(req.responseText);
-
-    for (var i = 0; i < res.data.length; i++) {
-        if (res.data[i].assigned_to == userId) {
-            assignedServers.push(res.data[i].server);
-        }
-    }
-
-    return assignedServers;
-};
-
-var showServers = function() {
-    OldBrowser.setContent(FILE.readFile("app\\servers.html", "utf-8"));
-
-    var assignedServers = getAssignedServers();
-    var req = HTTP.get(apiUrl + "/netsolid/items/servers", "", {
-        "Content-Type": "application/x-www-form-urlencoded",
-        "Authorization": "bearer " + token
-    });
-    var res = JSON.parse(req.responseText);
-    var template = $("#listview_servers .template");
-
-    for (var i = 0; i < res.data.length; i++) {
-        if (assignedServers.indexOf(res.data[i].id) > -1) {
-            var entry = template.clone();
-            entry.find("a.title").text(res.data[i].ipaddress);
-            entry.find("div.description").text(res.data[i].name);
-            entry.appendTo("#listview_servers");
-            
-            servers.push({
-                "data": res.data[i],
-                "entry": entry
-            });
-        }
-    }
-
-    template.css("display", "none");
-
-    document.getElementById("btn_logout").onclick = function() {
-        if (FILE.fileExists("token.txt")) {
-            token = FILE.deleteFile("token.txt")
-        }
         
-        if (FILE.fileExists("userid.txt")) {
-            userId = FILE.deleteFile("userid.txt");
-        }
 
-        exit(0);
+
+        template.css("display", "none");
+
+        document.getElementById("btn_logout").onclick = function() {
+            if (FILE.fileExists("token.txt")) {
+                token = FILE.deleteFile("token.txt")
+            }
+            
+            if (FILE.fileExists("userid.txt")) {
+                userId = FILE.deleteFile("userid.txt");
+            }
+
+            exit(0);
+        };
+
+        var pingTest = function() {
+            for (var i = 0; i < servers.length; i++) {
+                var responseTime = SYS.ping(servers[i].data.ipaddress);
+                servers[i].entry.find("span.ping").text(responseTime + " ms");
+            }
+        };
+        document.getElementById("btn_pingtest").onclick = pingTest;
+        setInterval(pingTest, 5000);
+        pingTest();
+
+        showApplications();
+
+        document.getElementById("btn_assign").onclick = function() {
+            showApplications();
+            assignStaticIP();
+        };
     };
     
-    var pingTest = function() {
-        for (var i = 0; i < servers.length; i++) {
-            var responseTime = SYS.pingTest(servers[i].data.ipaddress);
-            servers[i].entry.find("span.ping").text(responseTime + " ms");
-        }
-    };
-    document.getElementById("btn_pingtest").onclick = pingTest;
-    setInterval(pingTest, 5000);
-    pingTest();
+    return;
 
-    showApplications();
-
-    document.getElementById("btn_assign").onclick = function() {
-        showApplications();
-        assignStaticIP();
-    };
+    HTTP.create()
+        .setHeaders({
+            "Content-Type": "application/x-www-form-urlencoded",
+            "Authorization": "Bearer " + token
+        })
+        .get(apiUrl + "/netsolid/items/servers", onSuccess)
+    ;
 };
 
+
 if (FILE.fileExists("token.txt")) {
     token = FILE.readFile("token.txt", "utf-8");
 }
@@ -252,8 +118,8 @@ if (FILE.fileExists("userid.txt")) {
 }
 
 if (typeof(token) !== "undefined") {
-    showServers();
-    showLocalApplications();
+    OldBrowser.setContent(FILE.readFile("app\\servers.html", "utf-8"));
+    getMyServers();
 } else {
     OldBrowser.setContent(FILE.readFile("app\\login.html", "utf-8"));
 
@@ -267,20 +133,20 @@ if (typeof(token) !== "undefined") {
             "password": document.getElementById("txt_password").value
         };
 
-        var req = HTTP.post(apiUrl + "/netsolid/auth/authenticate", JSON.stringify(credential), {
-            "Content-Type": "application/json"
-        });
+        HTTP.create()
+            .setContentType("application/json")
+            .setRequestBody(credential)
+            .post(apiUrl + "/netsolid/auth/authenticate", function(res) {
+                if ("error" in res) {
+                    console.error(res.error.message);
+                } else if ("data" in res) {
+                    console.log("ok");
+                    FILE.writeFile("token.txt", res.data.token, "utf-8");
+                    FILE.writeFile("userid.txt", res.data.user.id, "utf-8");
 
-        var res = JSON.parse(req.responseText);
-        
-        if ("error" in res) {
-            console.error(res.error.message);
-        } else if ("data" in res) {
-            console.log("ok");
-            FILE.writeFile("token.txt", res.data.token, "utf-8");
-            FILE.writeFile("userid.txt", res.data.user.id, "utf-8");
-
-            window.location.reload();
-        }
+                    window.location.reload();
+                }
+            })
+        ;
     };
 }
diff --git a/lib/http.js b/lib/http.js
index 0702cf9..041f7bb 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -2,127 +2,183 @@
 // HTTP API
 ////////////////////////////////////////////////////////////////////////
 
-exports.VERSIONINFO = "HTTP Lib (http.js) version 0.1";
-exports.global = global;
-exports.require = global.require;
+//var WINSOCK = require("lib/winsock");
+
+var HTTPObject = function() {
+    this.interface = null;
+    this.contentType = "application/octet-stream";
+    this.requestBody = "";
+    this.responseBody = null;
+    this.method = "";
+    this.headers = {};
+    this.dataType = "";
+
+    this.create = function() {
+        this.interface = CreateObject([
+            "Microsoft.XMLHTTP"
+            "WinHttp.WinHttpRequest.5.1",
+            "Msxml2.XMLHTTP",
+            "Msxml2.XMLHTTP.7.0",
+            "Msxml2.XMLHTTP.6.0",
+            "Msxml2.XMLHTTP.5.O",
+            "Msxml2.XMLHTTP.4.O",
+            "Msxml2.XMLHTTP.3.O",
+            "Msxml2.XMLHTTP.2.6"
+        ], function(obj, progId) {
+            switch (progId) {
+                case "WinHttp.WinHttpRequest.5.1":
+                    obj.setTimeouts(30000, 30000, 30000, 0);
+                    break;
+            }
+        });
+        return this;
+    }
+
+    this.isJSONRequest = function() {
+        return (this.contentType === "application/json");
+    };
+
+    this.isJSONResponse = function() {
+        if (this.dataType === "json") {
+            return true;
+        } else {
+            var headers = this.getHeaders();
+            for (var key in headers) {
+                var _k = key.toLowerCase();
+                var _v = headers[key].toLowerCase();
+                if (_k === "content-type" && _v === "application/json") {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    };
+
+    this.setMethod = function(method) {
+        this.method = method;
+    };
+
+    this.setDataType = function(type) {
+        this.dataType = type;
+        return this;
+    };
+
+    this.setContentType = function(type) {
+        this.contentType = type;
+        return this;
+    };
+
+    this.setRequestBody = function(data) {
+        this.requestBody = data;
+        return this;
+    }
+
+    this.setResponseBody = function(data) {
+        this.responseBody = data;
+        return this;
+    }
+
+    this.setHeader = function(key, value) {
+        this.header[key] = value;
+        return this;
+    };
+
+    this.setHeaders = function(headers) {
+        var headers = (typeof(headers) !== "undefined") ? headers : {};
+        for (var key in headers) {
+            var value = headers[key];
+            this.setHeader(key, value);
+            if (key.toLowerCase() == "content-type") {
+                this.contentType = value.toLowerCase();
+            }
+        }
+
+        return this;
+    };
+
+    this.getHeader = function(key) {
+        return this.interface.getResponseHeader(key);
+    };
+
+    this.getHeaders = function() {
+        var raw = this.interface.getAllResponseHeaders();
+
+        return raw.split(/[\r\n]+/).filter(function(s) {
+            return s.trim().length > 0;
+        }).map(function(s) {
+            return s.trim().split(": ");
+        }).reduce(function(acc, c) {
+            acc[c[0].trim()] = c[1].trim();
+            return acc;
+        }, {});
+    };
+
+    this.open = function(method, url, isAsync) {
+        this.setMethod(method.toUpperCase());
+
+        switch (this.method) {
+            case "POST":
+                this.interface.open(method, url, isAsync);
+                break;
+
+            case "GET":
+                this.interface.open(method, url, isAsync);
+                break;
+
+            case "PATCH":
+                console.error("Not supported yet: " + method); // TODO
+                break;
+
+            default:
+                console.error("Not supported HTTP method: " + method);
+        }
+
+        return this;
+    };
+
+    this.send = function(callback) {
+        this.setHeader("Content-Type", this.contentType);
+
+        for (var key in headers) {
+            this.instance.setRequestHeader(key, headers[key]);
+        }
+
+        if (this.isJSONRequest() && typeof(this.requestBody) === "object") {
+            this.interface.send(JSON.stringify(this.requestBody));
+        } else {
+            this.interface.send(this.requestBody);
+        }
+
+        if (this.isJSONResponse()) {
+            this.setResponseBody(JSON.parse(this.interface.responseText));
+        } else {
+            this.setResponseBody(this.interface.responseText);
+        }
+
+        if (typeof(callback) === "function") {
+            callback(this.responseBody);
+        }
+
+        return this;
+    };
+
+    this.post = function(url, callback) {
+        return this.open("POST", url, false).send(callback);
+    };
+
+    this.get = function(url, callback) {
+        return;
+        //return this.open("GET", url, false).send(callback);
+    };
+
+    this.create();
+};
 
 exports.create = function() {
-    var http;
-
-    try {
-        http = CreateObject("Microsoft.XMLHTTP");
-    } catch(e) {
-        http = CreateObject("WinHttp.WinHttpRequest.5.1");
-        http.setTimeouts(30000, 30000, 30000, 0);
-    }
-
-    return http;
-}
-
-exports.addHeaders = function(http, headers) {
-    var headers = (typeof(headers) !== "undefined") ? headers : {};
-
-    var content = false;
-    for (var key in headers) {
-        var value = headers[key];
-
-        http.setRequestHeader(key, value);
-        if (key.toUpperCase() == "CONTENT-TYPE") {
-            content = true;
-        }
-    }
-
-    if (!content) {
-        http.setRequestHeader("Content-Type", "application/octet-stream");
-    }
+    return (new HTTPObject());
 };
 
-exports.post = function(url, data, headers) {
-    var data = (typeof(data) !== "undefined") ? data : "";
-
-    var http = exports.create();
-
-    http.open("POST", url, false);
-    exports.addHeaders(http, headers);
-    http.send(data);
-
-    return http;
-};
-
-exports.get = function(url, data, headers) {
-    var data = (typeof(data) !== "undefined") ? data : "";
-    var http = exports.create();
-
-    http.open("GET", url, false);
-    exports.addHeaders(http, headers);
-    http.send(data);
-
-    return http;
-};
-
-/**
- * Upload a file, off zombie, to stager
- *
- * @param filepath - the full path to the file to send
- * @param header_uuid - a unique identifier for this file
- * @param header_key - optional HTTP header tag to send uuid over
- *
- * @return object - the HTTP object
- *
- **/
-exports.upload = function(filepath, header_uuid, header_key) {
-    var key = (typeof(header_key) !== "undefined") ? header_key : "ETag";
-
-    var data = $.file.readBinary(filepath);
-
-    // we must replace null bytes or MS will cut off the body
-    data = data.replace(/\\/g, "\\\\");
-    data = data.replace(/\0/g, "\\0");
-
-    var headers = {};
-    headers[key] = header_uuid;
-
-    return $.work.report(data, headers);
-};
-
-exports.download = function(filepath, header_uuid, header_key) {
-    var key = (typeof(header_key) !== "undefined") ? header_key : "ETag";
-
-    var headers = {};
-    headers[key] = header_uuid;
-
-    return exports.downloadEx("POST", $.work.make_url(), headers, filepath);
-};
-
-exports.downloadEx = function(verb, url, headers, path) {
-    if (verb == "GET") {
-        var http = exports.get(url, headers);
-    } else {
-        var http = exports.post(url, "", headers);
-    }
-
-    var stream = LIB.CreateObject("Adodb.Stream");
-    stream.Type = 1;
-    stream.Open();
-    stream.Write(http.responseBody);
-
-    var data = exports.bin2str(stream);
-    $.file.write(path, data);
-};
-
-exports.bin2str = function(stream) {
-    stream.Flush();
-    stream.Position = 0;
-
-    var bin = stream.Read();
-    var rs = LIB.CreateObject("Adodb.RecordSet");
-    rs.Fields.Append("temp", 201, stream.Size);
-
-    rs.Open();
-    rs.AddNew();
-    rs("temp").AppendChunk(bin);
-    rs.Update();
-    var data = rs.GetString();
-    rs.Close();
-    return data.substring(0, data.length - 1);
-};
+exports.VERSIONINFO = "HTTP Lib (http.js) version 0.2";
+exports.global = global;
+exports.require = global.require;
diff --git a/lib/std.js b/lib/std.js
index 94da851..0254195 100644
--- a/lib/std.js
+++ b/lib/std.js
@@ -79,13 +79,13 @@ exports.require = global.require;
 // Emulate Server.CreateObject
 /////////////////////////////////////////////////////////////////////////////////
 
-exports.CreateObject = function(progId, serverName) {
+exports.CreateObject = function(progId, serverName, callback) {
     var progIds = [];
     var _CreateObject = function(p, s) {
         if (typeof(WScript) !== "undefined") {
             return WScript.CreateObject(p, s);
         } else {
-            return new ActiveXObject(p, s);
+            return new ActiveXObject(p);
         }
     };
 
@@ -97,7 +97,11 @@ exports.CreateObject = function(progId, serverName) {
 
     for (var i = 0; i < progIds.length; i++) {
         try {
-            return _CreateObject(progIds[i], serverName);
+            var obj = _CreateObject(progIds[i], serverName);
+            if (typeof(callback) === "function") {
+                callback(obj, progIds[i]);
+            }
+            return obj;
         } catch (e) {
             console.error(e.message);
         };
diff --git a/lib/system.js b/lib/system.js
index a05d45b..67ba911 100644
--- a/lib/system.js
+++ b/lib/system.js
@@ -192,10 +192,10 @@ exports.createShortcut = function(shoutcutName, fileName) {
     link.Save();
 };
 
-exports.pingTest = function(remoteAddr) {
+exports.ping = function(address) {
     var wmi = GetObject("winmgmts:{impersonationLevel=impersonate}!\\\\.\\root\\cimv2");
-    var query = "Select * From win32_PingStatus where address='" + remoteAddr + "'";
-    
+    var query = "Select * From win32_PingStatus where address='" + address + "'";
+
     var colItems = wmi.ExecQuery(query);
     var enumItems = new Enumerator(colItems);
     var objItem = enumItems.item();
diff --git a/token.txt b/token.txt
index 04d5f03..dae6032 100644
--- a/token.txt
+++ b/token.txt
@@ -1 +1 @@
-eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MSwiZXhwIjoxNjA0NTY1NDQ4LCJ0dGwiOjIwLCJ0eXBlIjoiYXV0aCIsImtleSI6Ijg1N2NlZDg1LTMzOWEtNDViNS04YTQ5LTJjOGM0YmE4ZDVmNCIsInByb2plY3QiOiJuZXRzb2xpZCJ9.1kpN2lnVJs_grRtSKMhIFVxdDsOnttr5IaQ8SEKVISA
\ No newline at end of file
+eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MSwiZXhwIjoxNjA0OTk3NTc5LCJ0dGwiOjIwLCJ0eXBlIjoiYXV0aCIsImtleSI6Ijg1N2NlZDg1LTMzOWEtNDViNS04YTQ5LTJjOGM0YmE4ZDVmNCIsInByb2plY3QiOiJuZXRzb2xpZCJ9.MXF1Pn7YveGVL7i-UpQGG64ARJu-CCQxbSUU-N38XOw
\ No newline at end of file