diff --git a/angular.json b/angular.json
index b24b253d..fb6dca3f 100644
--- a/angular.json
+++ b/angular.json
@@ -98,6 +98,7 @@
                 }
               ]
             },
+
             "renderer-development": {
               "fileReplacements": [
                 {
@@ -157,6 +158,66 @@
                   "maximumError": "10kb"
                 }
               ]
+            },
+            "renderer-daesang-development": {
+              "fileReplacements": [
+                {
+                  "replace": "projects/ucap-webmessenger-app/src/environments/environment.ts",
+                  "with": "projects/ucap-webmessenger-app/src/environments/environment-renderer.daesang.dev.ts"
+                }
+              ],
+              "tsConfig": "projects/ucap-webmessenger-app/tsconfig-es5.app.json",
+              "optimization": false,
+              "outputHashing": "all",
+              "sourceMap": true,
+              "extractCss": true,
+              "namedChunks": false,
+              "aot": false,
+              "extractLicenses": true,
+              "vendorChunk": false,
+              "buildOptimizer": false,
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "2mb",
+                  "maximumError": "5mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "6kb",
+                  "maximumError": "10kb"
+                }
+              ]
+            },
+            "renderer-daesang-production": {
+              "fileReplacements": [
+                {
+                  "replace": "projects/ucap-webmessenger-app/src/environments/environment.ts",
+                  "with": "projects/ucap-webmessenger-app/src/environments/environment-renderer.daesang.prod.ts"
+                }
+              ],
+              "tsConfig": "projects/ucap-webmessenger-app/tsconfig-es5.app.json",
+              "optimization": false,
+              "outputHashing": "all",
+              "sourceMap": true,
+              "extractCss": true,
+              "namedChunks": false,
+              "aot": false,
+              "extractLicenses": true,
+              "vendorChunk": false,
+              "buildOptimizer": false,
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "2mb",
+                  "maximumError": "5mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "6kb",
+                  "maximumError": "10kb"
+                }
+              ]
             }
           }
         },
@@ -178,6 +239,12 @@
             },
             "renderer-production": {
               "browserTarget": "ucap-webmessenger-app:build:renderer-production"
+            },
+            "renderer-daesang-development": {
+              "browserTarget": "ucap-webmessenger-app:build:renderer-daesang-development"
+            },
+            "renderer-daesang-production": {
+              "browserTarget": "ucap-webmessenger-app:build:renderer-daesang-production"
             }
           }
         },
diff --git a/config/main.webpack.config.ts b/config/main.webpack.config.ts
index 5759bf65..0dfc5816 100644
--- a/config/main.webpack.config.ts
+++ b/config/main.webpack.config.ts
@@ -20,18 +20,18 @@ const mainConfig: webpack.Configuration = {
       __dirname,
       '..',
       'electron-projects/ucap-webmessenger-electron/src/index'
-    ),
+    )
   },
   target: 'electron-main',
   mode: enviroments.__DEV__ ? 'development' : 'production',
   devtool: 'source-map',
   optimization: {
-    noEmitOnErrors: true,
+    noEmitOnErrors: true
   },
   externals,
   output: {
     filename: '[name].js',
-    path: path.resolve(__dirname, '..', outputDir),
+    path: path.resolve(__dirname, '..', outputDir)
   },
   module: {
     rules: [
@@ -44,7 +44,7 @@ const mainConfig: webpack.Configuration = {
             'electron-projects/ucap-webmessenger-electron/src'
           ),
           path.resolve(__dirname, '..', 'electron-projects'),
-          path.resolve(__dirname, '..', 'projects'),
+          path.resolve(__dirname, '..', 'projects')
         ],
         use: [
           {
@@ -55,20 +55,20 @@ const mainConfig: webpack.Configuration = {
                 __dirname,
                 '..',
                 'electron-projects/ucap-webmessenger-electron/tsconfig.electron.json'
-              ),
-            },
-          },
+              )
+            }
+          }
         ],
-        exclude: /node_modules/,
+        exclude: /node_modules/
       },
       {
         test: /\.node$/,
         loader: 'awesome-node-loader',
         options: {
-          name: '[name].[ext]',
-        },
-      },
-    ],
+          name: '[name].[ext]'
+        }
+      }
+    ]
   },
   plugins: [
     new CleanWebpackPlugin({ verbose: false }),
@@ -77,16 +77,16 @@ const mainConfig: webpack.Configuration = {
     new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
     new webpack.DefinePlugin(
       Object.assign({}, enviroments, {
-        __PROCESS_KIND__: JSON.stringify('main'),
+        __PROCESS_KIND__: JSON.stringify('main')
       })
     ),
     new CopyWebpackPlugin([
       {
         from: 'ucap-webmessenger-electron/resources/**/*',
         to: path.resolve(__dirname, '..', 'dist'),
-        context: 'electron-projects',
-      },
-    ]),
+        context: 'electron-projects'
+      }
+    ])
   ],
   resolve: {
     extensions: ['.js', '.ts'],
@@ -101,6 +101,11 @@ const mainConfig: webpack.Configuration = {
         '..',
         'electron-projects/ucap-webmessenger-electron-notification/src/public-api'
       ),
+      '@ucap-webmessenger/electron-update-window': path.resolve(
+        __dirname,
+        '..',
+        'electron-projects/ucap-webmessenger-electron-update-window/src/public-api'
+      ),
       '@ucap-webmessenger/core': path.resolve(
         __dirname,
         '..',
@@ -120,14 +125,14 @@ const mainConfig: webpack.Configuration = {
         __dirname,
         '..',
         'electron-projects/ucap-webmessenger-electron/src/public-api'
-      ),
+      )
     },
-    modules: [path.resolve(__dirname, '..', 'node_modules/')],
+    modules: [path.resolve(__dirname, '..', 'node_modules/')]
   },
   node: {
     __dirname: false,
-    __filename: false,
-  },
+    __filename: false
+  }
 };
 
 export default [mainConfig];
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/README.md b/electron-projects/ucap-webmessenger-electron-update-window/README.md
new file mode 100644
index 00000000..db69062e
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/README.md
@@ -0,0 +1,25 @@
+# UcapWebmessengerElectronUpdateWindow
+
+This library was generated with [Angular CLI](https://github.com/angular/angular-cli) version 8.2.11.
+
+## Code scaffolding
+
+Run `ng generate component component-name --project ucap-webmessenger-electron-update-window` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module --project ucap-webmessenger-electron-update-window`.
+
+> Note: Don't forget to add `--project ucap-webmessenger-electron-update-window` or else it will be added to the default project in your `angular.json` file.
+
+## Build
+
+Run `ng build ucap-webmessenger-electron-update-window` to build the project. The build artifacts will be stored in the `dist/` directory.
+
+## Publishing
+
+After building your library with `ng build ucap-webmessenger-electron-update-window`, go to the dist folder `cd dist/ucap-webmessenger-electron-update-window` and run `npm publish`.
+
+## Running unit tests
+
+Run `ng test ucap-webmessenger-electron-update-window` to execute the unit tests via [Karma](https://karma-runner.github.io).
+
+## Further help
+
+To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI README](https://github.com/angular/angular-cli/blob/master/README.md).
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/karma.conf.js b/electron-projects/ucap-webmessenger-electron-update-window/karma.conf.js
new file mode 100644
index 00000000..3859d39f
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/karma.conf.js
@@ -0,0 +1,34 @@
+// Karma configuration file, see link for more information
+// https://karma-runner.github.io/1.0/config/configuration-file.html
+
+module.exports = function(config) {
+  config.set({
+    basePath: '',
+    frameworks: ['jasmine'],
+    plugins: [
+      require('karma-jasmine'),
+      require('karma-chrome-launcher'),
+      require('karma-jasmine-html-reporter'),
+      require('karma-coverage-istanbul-reporter')
+    ],
+    client: {
+      clearContext: false // leave Jasmine Spec Runner output visible in browser
+    },
+    coverageIstanbulReporter: {
+      dir: require('path').join(
+        __dirname,
+        '../../coverage/ucap-webmessenger-electron-update-window'
+      ),
+      reports: ['html', 'lcovonly', 'text-summary'],
+      fixWebpackSourcePaths: true
+    },
+    reporters: ['progress', 'kjhtml'],
+    port: 9876,
+    colors: true,
+    logLevel: config.LOG_INFO,
+    autoWatch: true,
+    browsers: ['Chrome'],
+    singleRun: false,
+    restartOnFileChange: true
+  });
+};
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/package.json b/electron-projects/ucap-webmessenger-electron-update-window/package.json
new file mode 100644
index 00000000..e48fb351
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "@ucap-webmessenger/electron-update-window",
+  "version": "0.0.1",
+  "peerDependencies": {}
+}
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/src/lib/services/electron-update-window.service.ts b/electron-projects/ucap-webmessenger-electron-update-window/src/lib/services/electron-update-window.service.ts
new file mode 100644
index 00000000..886ec675
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/src/lib/services/electron-update-window.service.ts
@@ -0,0 +1 @@
+export class ElectronUpdateWindowService {}
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/src/public-api.ts b/electron-projects/ucap-webmessenger-electron-update-window/src/public-api.ts
new file mode 100644
index 00000000..8efee9e2
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/src/public-api.ts
@@ -0,0 +1,3 @@
+/*
+ * Public API Surface of ucap-webmessenger-electron-update-window
+ */
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/src/test.ts b/electron-projects/ucap-webmessenger-electron-update-window/src/test.ts
new file mode 100644
index 00000000..978c64fb
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/src/test.ts
@@ -0,0 +1,21 @@
+// This file is required by karma.conf.js and loads recursively all the .spec and framework files
+
+import 'zone.js/dist/zone';
+import 'zone.js/dist/zone-testing';
+import { getTestBed } from '@angular/core/testing';
+import {
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting
+} from '@angular/platform-browser-dynamic/testing';
+
+declare const require: any;
+
+// First, initialize the Angular testing environment.
+getTestBed().initTestEnvironment(
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting()
+);
+// Then we find all the tests.
+const context = require.context('./', true, /\.spec\.ts$/);
+// And load the modules.
+context.keys().map(context);
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/tsconfig.lib.json b/electron-projects/ucap-webmessenger-electron-update-window/tsconfig.lib.json
new file mode 100644
index 00000000..33840d86
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/tsconfig.lib.json
@@ -0,0 +1,12 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../out-tsc/lib",
+    "target": "es2015",
+    "declaration": true,
+    "inlineSources": true,
+    "types": [],
+    "lib": ["dom", "es2018"]
+  },
+  "exclude": ["src/test.ts", "**/*.spec.ts"]
+}
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/tsconfig.spec.json b/electron-projects/ucap-webmessenger-electron-update-window/tsconfig.spec.json
new file mode 100644
index 00000000..16da33db
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/tsconfig.spec.json
@@ -0,0 +1,17 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../out-tsc/spec",
+    "types": [
+      "jasmine",
+      "node"
+    ]
+  },
+  "files": [
+    "src/test.ts"
+  ],
+  "include": [
+    "**/*.spec.ts",
+    "**/*.d.ts"
+  ]
+}
diff --git a/electron-projects/ucap-webmessenger-electron-update-window/tslint.json b/electron-projects/ucap-webmessenger-electron-update-window/tslint.json
new file mode 100644
index 00000000..95437ac7
--- /dev/null
+++ b/electron-projects/ucap-webmessenger-electron-update-window/tslint.json
@@ -0,0 +1,17 @@
+{
+  "extends": "../../tslint.json",
+  "rules": {
+    "directive-selector": [
+      true,
+      "attribute",
+      "ucapElectronUpdateWindow",
+      "camelCase"
+    ],
+    "component-selector": [
+      true,
+      "element",
+      "ucap-electron-update-window",
+      "kebab-case"
+    ]
+  }
+}
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_call_message.png b/electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_call_message.png
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_call_message.png
rename to electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_call_message.png
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_call_receive.png b/electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_call_receive.png
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_call_receive.png
rename to electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_call_receive.png
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_call_refuse.png b/electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_call_refuse.png
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_call_refuse.png
rename to electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_call_refuse.png
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_call_transfer.png b/electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_call_transfer.png
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_call_transfer.png
rename to electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_call_transfer.png
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_close.png b/electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_close.png
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_close.png
rename to electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_close.png
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_close_gray.png b/electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_close_gray.png
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_close_gray.png
rename to electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_close_gray.png
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_noti_call.png b/electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_noti_call.png
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/image/btn_noti_call.png
rename to electron-projects/ucap-webmessenger-electron/resources/notification/images/btn_noti_call.png
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/image/img_nophoto_50.png b/electron-projects/ucap-webmessenger-electron/resources/notification/images/img_nophoto_50.png
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/image/img_nophoto_50.png
rename to electron-projects/ucap-webmessenger-electron/resources/notification/images/img_nophoto_50.png
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/sound/messageAlarm.mp3 b/electron-projects/ucap-webmessenger-electron/resources/notification/sounds/messageAlarm.mp3
similarity index 100%
rename from electron-projects/ucap-webmessenger-electron/resources/notification/sound/messageAlarm.mp3
rename to electron-projects/ucap-webmessenger-electron/resources/notification/sounds/messageAlarm.mp3
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/styles/noti_messege.css b/electron-projects/ucap-webmessenger-electron/resources/notification/styles/noti_messege.css
index 02cbf609..ce92d6c7 100644
--- a/electron-projects/ucap-webmessenger-electron/resources/notification/styles/noti_messege.css
+++ b/electron-projects/ucap-webmessenger-electron/resources/notification/styles/noti_messege.css
@@ -63,7 +63,7 @@ a:active {
   top: 6px;
   width: 20px;
   height: 20px;
-  background: url(../image/btn_close_gray.png) no-repeat 50% 50%;
+  background: url(../images/btn_close_gray.png) no-repeat 50% 50%;
 }
 .btn_close:hover {
   opacity: 0.7;
@@ -78,7 +78,7 @@ a:active {
   width: 54px;
   height: 54px;
   border-radius: 50%;
-  background: #5bc1ff url(../image/img_nophoto_50.png) no-repeat 50% 50%;
+  background: #5bc1ff url(../images/img_nophoto_50.png) no-repeat 50% 50%;
   border: 2px solid #ddd;
 }
 .info .profile {
diff --git a/electron-projects/ucap-webmessenger-electron/resources/notification/template.html b/electron-projects/ucap-webmessenger-electron/resources/notification/template.html
index 5bec4a80..ef896e72 100644
--- a/electron-projects/ucap-webmessenger-electron/resources/notification/template.html
+++ b/electron-projects/ucap-webmessenger-electron/resources/notification/template.html
@@ -1,16 +1,12 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
-<HTML>
-  <HEAD>
+<html>
+  <head>
     <title>[개발]M Messenger - 메시지 알림</title>
     <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
     <meta charset="UTF-8" />
-    <link
-      type="text/css"
-      rel="stylesheet"
-      href="styles/noti_messege.css"
-    />
-  </HEAD>
+    <link type="text/css" rel="stylesheet" href="styles/noti_messege.css" />
+  </head>
   <style>
     html,
     body {
@@ -18,7 +14,7 @@
       overflow-x: hidden;
     }
   </style>
-  <BODY>
+  <body>
     <div class="noti_messege" id="container">
       <div class="info">
         <a class="btn_close" id="close"></a>
@@ -28,7 +24,7 @@
             <img
               src=""
               id="image"
-              onerror="this.src='image/img_nophoto_50.png';"
+              onerror="this.src='images/img_nophoto_50.png';"
             />
           </div>
         </div>
@@ -46,5 +42,5 @@
         </div>
       </div>
     </div>
-  </BODY>
-</HTML>
+  </body>
+</html>
diff --git a/electron-projects/ucap-webmessenger-electron/resources/update-window/preload.js b/electron-projects/ucap-webmessenger-electron/resources/update-window/preload.js
new file mode 100644
index 00000000..e69de29b
diff --git a/electron-projects/ucap-webmessenger-electron/resources/update-window/template.html b/electron-projects/ucap-webmessenger-electron/resources/update-window/template.html
new file mode 100644
index 00000000..e69de29b
diff --git a/electron-projects/ucap-webmessenger-electron/src/index.ts b/electron-projects/ucap-webmessenger-electron/src/index.ts
index 7fdd62ce..e84ff168 100644
--- a/electron-projects/ucap-webmessenger-electron/src/index.ts
+++ b/electron-projects/ucap-webmessenger-electron/src/index.ts
@@ -26,6 +26,10 @@ import {
   UpdateCheckConfig
 } from '@ucap-webmessenger/native';
 import { ElectronAppChannel } from '@ucap-webmessenger/electron-core';
+
+import { autoUpdater, CancellationToken } from 'electron-updater';
+import log from 'electron-log';
+
 import { RendererUpdater } from './lib/renderer-updater';
 
 const appIconPath = __LINUX__
@@ -80,6 +84,12 @@ isDuplicateInstance = !gotSingleInstanceLock;
 let idle: IdleChecker | null;
 let rendererUpdater: RendererUpdater | undefined;
 
+log.transports.file.level = 'debug';
+
+let autoUpdaterCancellationToken: CancellationToken;
+autoUpdater.autoDownload = false;
+autoUpdater.logger = log;
+
 app.on(ElectronAppChannel.SecondInstance, (event, args, workingDirectory) => {
   // Someone tried to run a second instance, we should focus our window.
   if (appWindow) {
@@ -400,12 +410,15 @@ ipcMain.on(
       text: noti.contents,
       image:
         noti.image ||
-        path.join(__dirname, 'resources/notification/image/img_nophoto_50.png'),
+        path.join(
+          __dirname,
+          'resources/notification/images/img_nophoto_50.png'
+        ),
       sound: noti.useSound
         ? path.join(
             'file://',
             __dirname,
-            'resources/notification/sound/messageAlarm.mp3'
+            'resources/notification/sounds/messageAlarm.mp3'
           )
         : '',
       onClick: e => {
diff --git a/electron-projects/ucap-webmessenger-electron/tsconfig.electron.json b/electron-projects/ucap-webmessenger-electron/tsconfig.electron.json
index d01f9dcd..951a541b 100644
--- a/electron-projects/ucap-webmessenger-electron/tsconfig.electron.json
+++ b/electron-projects/ucap-webmessenger-electron/tsconfig.electron.json
@@ -19,6 +19,9 @@
       "@ucap-webmessenger/electron-notification": [
         "../ucap-webmessenger-electron-notification/src/public-api"
       ],
+      "@ucap-webmessenger/electron-update-window": [
+        "../ucap-webmessenger-electron-update-window/src/public-api"
+      ],
       "@ucap-webmessenger/core": [
         "../../projects/ucap-webmessenger-core/src/public-api"
       ],
diff --git a/package.json b/package.json
index 8effa38e..23fb5380 100644
--- a/package.json
+++ b/package.json
@@ -7,12 +7,22 @@
     "start": "npm-run-all -p start:renderer start:main",
     "start:main": "wait-on http-get://localhost:4200/ && npm run build:main:development && electron --nolazy --inspect-brk=9229 .",
     "start:renderer": "cross-env UCAP_ENV_RUNTIME=ELECTRON ng serve -c renderer-development",
+    "start:daesang": "npm-run-all -p start:daesang:renderer start:daesang:main",
+    "start:daesang:main": "wait-on http-get://localhost:4200/ && npm run build:daesang:main:development && electron --nolazy --inspect-brk=9229 .",
+    "start:daesang:renderer": "cross-env UCAP_ENV_RUNTIME=ELECTRON ng serve -c renderer-daesang-development",
     "start:browser": "cross-env UCAP_ENV_RUNTIME=BROWSER ng serve -c browser-development -o",
     "build": "npm-run-all -p build:renderer build:main:production",
+    "build:daesang": "npm-run-all -p build:daesang:renderer build:daesang:main:production",
     "build:renderer": "cross-env NODE_ENV=production ng build -c renderer-development --base-href ./",
+    "build:daesang:renderer": "cross-env NODE_ENV=production ng build -c renderer-daesang-development --base-href ./",
     "build:browser": "cross-env UCAP_ENV_RUNTIME=BROWSER ng build -c browser-development --base-href ./NextMessenger_POC",
     "build:main:development": "cross-env NODE_ENV=development TS_NODE_PROJECT='./config/tsconfig.webpack.json' parallel-webpack --config=config/main.webpack.config.ts",
     "build:main:production": "cross-env NODE_ENV=production TS_NODE_PROJECT='./config/tsconfig.webpack.json' NODE_OPTIONS='--max_old_space_size=4096' parallel-webpack --config=config/main.webpack.config.ts",
+    "build:daesang:main:development": "cross-env NODE_ENV=development TS_NODE_PROJECT='./config/tsconfig.webpack.json' parallel-webpack --config=config/main.webpack.config.ts",
+    "build:daesang:main:production": "cross-env NODE_ENV=production TS_NODE_PROJECT='./config/tsconfig.webpack.json' NODE_OPTIONS='--max_old_space_size=4096' parallel-webpack --config=config/main.webpack.config.ts",
+    "run:daesang": "npm-run-all -p run:daesang:renderer run:daesang:main",
+    "run:daesang:main": "wait-on http-get://localhost:4200/ && npm run build:daesang:main:development && electron --nolazy --inspect-brk=9229 .",
+    "run:daesang:renderer": "cross-env UCAP_ENV_RUNTIME=ELECTRON ng serve -c renderer-daesang-production",
     "electron:local": "electron .",
     "electron:windows": "npm run build && electron-builder build --windows",
     "electron:mac": "npm run build && electron-builder build --mac",
diff --git a/projects/ucap-webmessenger-app/src/environments/environment-browser.daesang.dev.ts b/projects/ucap-webmessenger-app/src/environments/environment-browser.daesang.dev.ts
new file mode 100644
index 00000000..7352f661
--- /dev/null
+++ b/projects/ucap-webmessenger-app/src/environments/environment-browser.daesang.dev.ts
@@ -0,0 +1,7 @@
+import { Environment } from './environment.type';
+import { environment as devEnvironment } from './environment.daesang.dev';
+
+export const environment: Environment = {
+  ...devEnvironment,
+  runtime: 'browser'
+};
diff --git a/projects/ucap-webmessenger-app/src/environments/environment-browser.daesang.prod.ts b/projects/ucap-webmessenger-app/src/environments/environment-browser.daesang.prod.ts
new file mode 100644
index 00000000..0b208823
--- /dev/null
+++ b/projects/ucap-webmessenger-app/src/environments/environment-browser.daesang.prod.ts
@@ -0,0 +1,7 @@
+import { Environment } from './environment.type';
+import { environment as prodEnvironment } from './environment.daesang.prod';
+
+export const environment: Environment = {
+  ...prodEnvironment,
+  runtime: 'browser'
+};
diff --git a/projects/ucap-webmessenger-app/src/environments/environment-renderer.daesang.dev.ts b/projects/ucap-webmessenger-app/src/environments/environment-renderer.daesang.dev.ts
new file mode 100644
index 00000000..6b2e3ba3
--- /dev/null
+++ b/projects/ucap-webmessenger-app/src/environments/environment-renderer.daesang.dev.ts
@@ -0,0 +1,7 @@
+import { Environment } from './environment.type';
+import { environment as devEnvironment } from './environment.daesang.dev';
+
+export const environment: Environment = {
+  ...devEnvironment,
+  runtime: 'electron'
+};
diff --git a/projects/ucap-webmessenger-app/src/environments/environment-renderer.daesang.prod.ts b/projects/ucap-webmessenger-app/src/environments/environment-renderer.daesang.prod.ts
new file mode 100644
index 00000000..4344affb
--- /dev/null
+++ b/projects/ucap-webmessenger-app/src/environments/environment-renderer.daesang.prod.ts
@@ -0,0 +1,7 @@
+import { Environment } from './environment.type';
+import { environment as prodEnvironment } from './environment.daesang.prod';
+
+export const environment: Environment = {
+  ...prodEnvironment,
+  runtime: 'electron'
+};
diff --git a/projects/ucap-webmessenger-app/src/environments/environment.daesang.dev.ts b/projects/ucap-webmessenger-app/src/environments/environment.daesang.dev.ts
new file mode 100644
index 00000000..d7cb303f
--- /dev/null
+++ b/projects/ucap-webmessenger-app/src/environments/environment.daesang.dev.ts
@@ -0,0 +1,96 @@
+import {
+  Environment,
+  commonApiUrls,
+  commonApiacceptableFileExtensions,
+  publicApiUrls,
+  externalApiUrls,
+  piUrls,
+  protocolUrls,
+  messageApiUrls
+} from './environment.type';
+import { DeviceType } from '@ucap-webmessenger/core';
+
+export const environment: Environment = {
+  production: false,
+  title: `[개발] DS Talk`,
+
+  companyConfig: {
+    companyGroupCode: 'LG'
+  },
+
+  productConfig: {
+    productId: 'PRO_000482',
+    productName: 'EZMessenger',
+    authentication: {
+      usePrivateInformationAgree: false
+    },
+    updateCheckConfig: {
+      deviceType: DeviceType.Renderer,
+      intervalHour: 1
+    }
+  },
+
+  commonApiModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: '15.164.139.105',
+      port: 8011
+    },
+    urls: commonApiUrls,
+    acceptableFileExtensions: commonApiacceptableFileExtensions
+  },
+
+  publicApiModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: '15.164.139.105',
+      port: 8011
+    },
+    urls: publicApiUrls
+  },
+
+  externalApiModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: '15.164.139.105',
+      port: 8011
+    },
+    urls: externalApiUrls
+  },
+
+  messageApiModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: '15.164.139.105',
+      port: 9098
+    },
+    urls: messageApiUrls
+  },
+
+  piModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: '15.164.139.105',
+      port: 9097
+    },
+    urls: piUrls
+  },
+
+  protocolModuleConfig: {
+    hostConfig: {
+      protocol: 'ws',
+      domain: '15.164.139.105',
+      port: 8080
+    },
+    urls: protocolUrls,
+    reconnect: {
+      delay: 1000
+    },
+    requestId: {
+      min: 1,
+      max: 59999
+    }
+  },
+
+  nativeModuleConfig: {}
+};
diff --git a/projects/ucap-webmessenger-app/src/environments/environment.daesang.prod.ts b/projects/ucap-webmessenger-app/src/environments/environment.daesang.prod.ts
new file mode 100644
index 00000000..be59dd85
--- /dev/null
+++ b/projects/ucap-webmessenger-app/src/environments/environment.daesang.prod.ts
@@ -0,0 +1,96 @@
+import {
+  Environment,
+  commonApiUrls,
+  commonApiacceptableFileExtensions,
+  publicApiUrls,
+  externalApiUrls,
+  piUrls,
+  protocolUrls,
+  messageApiUrls
+} from './environment.type';
+import { DeviceType } from '@ucap-webmessenger/core';
+
+export const environment: Environment = {
+  production: false,
+  title: `DS Talk`,
+
+  companyConfig: {
+    companyGroupCode: 'LG'
+  },
+
+  productConfig: {
+    productId: 'PRO_000482',
+    productName: 'EZMessenger',
+    authentication: {
+      usePrivateInformationAgree: false
+    },
+    updateCheckConfig: {
+      deviceType: DeviceType.Renderer,
+      intervalHour: 1
+    }
+  },
+
+  commonApiModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: 'messenger.daesang.com',
+      port: 8011
+    },
+    urls: commonApiUrls,
+    acceptableFileExtensions: commonApiacceptableFileExtensions
+  },
+
+  publicApiModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: 'messenger.daesang.com',
+      port: 8011
+    },
+    urls: publicApiUrls
+  },
+
+  externalApiModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: 'messenger.daesang.com',
+      port: 8011
+    },
+    urls: externalApiUrls
+  },
+
+  messageApiModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: 'messenger.daesang.com',
+      port: 9098
+    },
+    urls: messageApiUrls
+  },
+
+  piModuleConfig: {
+    hostConfig: {
+      protocol: 'http',
+      domain: 'messenger.daesang.com',
+      port: 9097
+    },
+    urls: piUrls
+  },
+
+  protocolModuleConfig: {
+    hostConfig: {
+      protocol: 'ws',
+      domain: 'messenger.daesang.com',
+      port: 8080
+    },
+    urls: protocolUrls,
+    reconnect: {
+      delay: 1000
+    },
+    requestId: {
+      min: 1,
+      max: 59999
+    }
+  },
+
+  nativeModuleConfig: {}
+};
diff --git a/tsconfig.json b/tsconfig.json
index 96365baf..2b65e11b 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -141,6 +141,9 @@
       "@ucap-webmessenger/electron-notification": [
         "electron-projects/ucap-webmessenger-electron-notification/src/public-api"
       ],
+      "@ucap-webmessenger/electron-update-window": [
+        "electron-projects/ucap-webmessenger-electron-update-window/src/public-api"
+      ],
       "@ucap-webmessenger/electron": [
         "electron-projects/ucap-webmessenger-electron/src/public-api"
       ]