diff --git a/.travis.yml b/.travis.yml
index a9230e1b1..8cad2d778 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,8 +20,6 @@ jobs:
       name: 'Code quality checks'
       script:
         - npm run lint
-        - npm run spellcheck
-        - npm run format:check
     - stage: test
       name: 'Unit tests'
       script:
diff --git a/angular.json b/angular.json
index 2961f4555..e7700381c 100644
--- a/angular.json
+++ b/angular.json
@@ -45,15 +45,20 @@
                 "input": "node_modules/pdfjs-dist/build",
                 "output": "/"
               },
-              {
-                "glob": "**/*.json",
-                "input": "node_modules/@denysvuika/aca-dev-tools/assets",
-                "output": "./assets/plugins"
-              },
               {
                 "glob": "extension.schema.json",
                 "input": ".",
                 "output": "./assets"
+              },
+              {
+                "glob": "**/*.json",
+                "input": "node_modules/@alfresco/adf-office-services-ext/assets",
+                "output": "./assets/plugins"
+              },
+              {
+                "glob": "**/*.json",
+                "input": "projects/adf-office-services-ext/assets",
+                "output": "./assets/plugins"
               }
             ],
             "styles": [
@@ -62,10 +67,11 @@
               "src/styles.scss"
             ],
             "scripts": [
-                "node_modules/pdfjs-dist/build/pdf.js",
-                "node_modules/pdfjs-dist/web/pdf_viewer.js",
-                "node_modules/moment/min/moment.min.js"
-            ]
+              "node_modules/pdfjs-dist/build/pdf.js",
+              "node_modules/pdfjs-dist/web/pdf_viewer.js",
+              "node_modules/moment/min/moment.min.js"
+            ],
+            "es5BrowserSupport": true
           },
           "configurations": {
             "production": {
@@ -222,6 +228,41 @@
           }
         }
       }
+    },
+    "adf-office-services-ext": {
+      "root": "projects/adf-office-services-ext",
+      "sourceRoot": "projects/adf-office-services-ext/src",
+      "projectType": "library",
+      "prefix": "lib",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-ng-packagr:build",
+          "options": {
+            "tsConfig": "projects/adf-office-services-ext/tsconfig.lib.json",
+            "project": "projects/adf-office-services-ext/ng-package.json"
+          }
+        },
+        "test": {
+          "builder": "@angular-devkit/build-angular:karma",
+          "options": {
+            "main": "projects/adf-office-services-ext/src/test.ts",
+            "tsConfig": "projects/adf-office-services-ext/tsconfig.spec.json",
+            "karmaConfig": "projects/adf-office-services-ext/karma.conf.js"
+          }
+        },
+        "lint": {
+          "builder": "@angular-devkit/build-angular:tslint",
+          "options": {
+            "tsConfig": [
+              "projects/adf-office-services-ext/tsconfig.lib.json",
+              "projects/adf-office-services-ext/tsconfig.spec.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
+          }
+        }
+      }
     }
   },
   "defaultProject": "app",
diff --git a/package-lock.json b/package-lock.json
index 6eb2aff3a..9f2c42682 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3000,6 +3000,18 @@
         }
       }
     },
+    "cpr": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/cpr/-/cpr-3.0.1.tgz",
+      "integrity": "sha1-uaVQOLfNgaNcF7l2GJW9hJau8eU=",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.5",
+        "minimist": "^1.2.0",
+        "mkdirp": "~0.5.1",
+        "rimraf": "^2.5.4"
+      }
+    },
     "create-ecdh": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/create-ecdh/-/create-ecdh-4.0.3.tgz",
diff --git a/package.json b/package.json
index f809c9d4a..13e678c6e 100644
--- a/package.json
+++ b/package.json
@@ -4,14 +4,16 @@
   "license": "LGPL-3.0",
   "scripts": {
     "ng": "ng",
-    "start": "ng serve --open",
+    "start": "npm run build.extensions && ng serve --open",
     "start:prod": "ng serve --prod --open",
-    "build": "node --max-old-space-size=8192 node_modules/@angular/cli/bin/ng build app --prod",
-    "build:dev": "ng build",
-    "build.e2e": "node --max-old-space-size=8192 node_modules/@angular/cli/bin/ng build app --configuration=e2e",
+    "build:aos-extension": "rm -rf dist/@alfresco/adf-office-services-ext && ng build adf-office-services-ext && cp projects/adf-office-services-ext/ngi.json dist/@alfresco/adf-office-services-ext && cpr projects/adf-office-services-ext/assets dist/@alfresco/adf-office-services-ext/assets",
+    "build.extensions": "npm run build:aos-extension",
+    "build.app": "node --max-old-space-size=8192 node_modules/@angular/cli/bin/ng build app",
+    "build": "npm run build.extensions && npm run build.app -- --prod",
+    "build.e2e": "npm run build.extensions && npm run build.app -- --prod --configuration=e2e",
     "test": "ng test app --code-coverage",
-    "test:ci": "ng test app --code-coverage --watch=false",
-    "lint": "ng lint",
+    "test:ci": "npm run build.extensions && ng test app --code-coverage --watch=false",
+    "lint": "ng lint && npm run spellcheck && npm run format:check",
     "wd:update": "webdriver-manager update --gecko=false",
     "e2e": "npm run wd:update && protractor --baseUrl=http://localhost:4000",
     "e2e.local": "npm run wd:update && protractor --baseUrl=http://localhost:4200",
@@ -23,7 +25,7 @@
     "inspect.bundle": "ng build app --prod --stats-json && npx webpack-bundle-analyzer dist/app/stats.json",
     "format:check": "prettier --check \"src/{app,environments}/**/*.{ts,js,css,scss,html}\"",
     "format:fix": "prettier --write \"src/{app,environments}/**/*.{ts,js,css,scss,html}\"",
-    "build.tomcat": "npm run build -- --base-href ./ && jar -cvf docker/tomcat/artifacts/content-app.war -C dist/app/ .",
+    "build.tomcat": "npm run build.extensions && npm run build.app -- --prod --base-href ./ && jar -cvf docker/tomcat/artifacts/content-app.war -C dist/app/ .",
     "build.tomcat.e2e": "./build-tomcat-e2e.sh",
     "e2e.tomcat": "npm run wd:update && protractor --baseUrl=http://localhost:4000/content-app/",
     "docker.tomcat.start": "cd docker/tomcat && docker-compose up -d --build && npm run wait:app",
@@ -78,6 +80,7 @@
     "@types/selenium-webdriver": "^3.0.8",
     "chrome-remote-interface": "^0.26.1",
     "codelyzer": "^4.5.0",
+    "cpr": "^3.0.1",
     "cspell": "^3.1.3",
     "jasmine-core": "~2.8.0",
     "jasmine-reporters": "^2.2.1",
diff --git a/projects/adf-office-services-ext/LICENSE b/projects/adf-office-services-ext/LICENSE
new file mode 100644
index 000000000..65c5ca88a
--- /dev/null
+++ b/projects/adf-office-services-ext/LICENSE
@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/projects/adf-office-services-ext/README.md b/projects/adf-office-services-ext/README.md
new file mode 100644
index 000000000..6d04ec313
--- /dev/null
+++ b/projects/adf-office-services-ext/README.md
@@ -0,0 +1,24 @@
+# AdfOfficeServicesExt
+
+This library was generated with [Angular CLI](https://github.com/angular/angular-cli) version 7.2.0.
+
+## Code scaffolding
+
+Run `ng generate component component-name --project adf-office-services-ext` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module --project adf-office-services-ext`.
+> Note: Don't forget to add `--project adf-office-services-ext` or else it will be added to the default project in your `angular.json` file. 
+
+## Build
+
+Run `ng build adf-office-services-ext` to build the project. The build artifacts will be stored in the `dist/` directory.
+
+## Publishing
+
+After building your library with `ng build adf-office-services-ext`, go to the dist folder `cd dist/adf-office-services-ext` and run `npm publish`.
+
+## Running unit tests
+
+Run `ng test adf-office-services-ext` 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/projects/adf-office-services-ext/assets/aos.plugin.json b/projects/adf-office-services-ext/assets/aos.plugin.json
new file mode 100644
index 000000000..115574af3
--- /dev/null
+++ b/projects/adf-office-services-ext/assets/aos.plugin.json
@@ -0,0 +1,70 @@
+{
+  "$schema": "../../../extension.schema.json",
+  "$id": "9a635542-d87a-4558-ae64-ffa199d1a364",
+  "$version": "1.0.0",
+  "$name": "keensoft.aos.plugin",
+  "$description": "Extension that provides Office Edit Online Action",
+  "$vendor": "Keensoft",
+  "$license": "LGPL-3.0",
+  "$runtime": "1.6.0",
+
+  "actions": [
+    {
+      "id": "aos.openWith.office",
+      "type": "AOS_ACTION",
+      "payload": "$(context.selection.first.entry)"
+    }
+  ],
+
+  "features": {
+    "toolbar": [
+      {
+        "id": "app.toolbar.more",
+        "children": [
+          {
+            "id": "aos.toolbar.openWith.office",
+            "order": 90,
+            "icon": "adf:application/msword",
+            "title": "Edit in Microsoft Office™",
+            "actions": {
+              "click": "aos.openWith.office"
+            },
+            "rules": {
+              "visible": "aos.canOpenWithOffice"
+            }
+          }
+        ]
+      }
+    ],
+    "contextMenu": [
+      {
+        "id": "aos.context.openWith.office",
+        "order": 90,
+        "icon": "adf:application/msword",
+        "title": "Edit in Microsoft Office™",
+        "actions": {
+          "click": "aos.openWith.office"
+        },
+        "rules": {
+          "visible": "aos.canOpenWithOffice"
+        }
+      }
+    ],
+    "viewer": {
+      "openWith": [
+        {
+          "id": "aos.viewer.openWith.office",
+          "type": "button",
+          "icon": "adf:application/msword",
+          "title": "Microsoft Office™",
+          "actions": {
+            "click": "aos.openWith.office"
+          },
+          "rules": {
+            "visible": "aos.canOpenWithOffice"
+          }
+        }
+      ]
+    }
+  }
+}
diff --git a/projects/adf-office-services-ext/karma.conf.js b/projects/adf-office-services-ext/karma.conf.js
new file mode 100644
index 000000000..dd9b7e664
--- /dev/null
+++ b/projects/adf-office-services-ext/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', '@angular-devkit/build-angular'],
+    plugins: [
+      require('karma-jasmine'),
+      require('karma-chrome-launcher'),
+      require('karma-jasmine-html-reporter'),
+      require('karma-coverage-istanbul-reporter'),
+      require('@angular-devkit/build-angular/plugins/karma')
+    ],
+    client: {
+      clearContext: false // leave Jasmine Spec Runner output visible in browser
+    },
+    coverageIstanbulReporter: {
+      dir: require('path').join(
+        __dirname,
+        '../../coverage/adf-office-services-ext'
+      ),
+      reports: ['html', 'lcovonly'],
+      fixWebpackSourcePaths: true
+    },
+    reporters: ['progress', 'kjhtml'],
+    port: 9876,
+    colors: true,
+    logLevel: config.LOG_INFO,
+    autoWatch: true,
+    browsers: ['Chrome'],
+    singleRun: false
+  });
+};
diff --git a/projects/adf-office-services-ext/ng-package.json b/projects/adf-office-services-ext/ng-package.json
new file mode 100644
index 000000000..c63ea38c6
--- /dev/null
+++ b/projects/adf-office-services-ext/ng-package.json
@@ -0,0 +1,14 @@
+{
+  "$schema": "../../node_modules/ng-packagr/ng-package.schema.json",
+  "dest": "../../dist/@alfresco/adf-office-services-ext",
+  "lib": {
+    "entryFile": "src/public_api.ts",
+    "flatModuleFile": "adf-office-services-ext",
+    "umdModuleIds": {
+      "@alfresco/js-api": "@alfresco/js-api",
+      "@alfresco/adf-core": "@alfresco/adf-core",
+      "@alfresco/adf-extensions": "@alfresco/adf-extensions",
+      "@ngrx/effects": "@ngrx/effects"
+    }
+  }
+}
diff --git a/projects/adf-office-services-ext/ngi.json b/projects/adf-office-services-ext/ngi.json
new file mode 100644
index 000000000..471c8fb4d
--- /dev/null
+++ b/projects/adf-office-services-ext/ngi.json
@@ -0,0 +1,15 @@
+{
+  "assets": [
+    {
+      "glob": "**/*.json",
+      "input": "./assets",
+      "output": "./assets/plugins"
+    }
+  ],
+  "modules": [
+    {
+      "name": "AosExtensionModule",
+      "namespace": "@alfresco/adf-office-services-ext"
+    }
+  ]
+}
diff --git a/projects/adf-office-services-ext/package.json b/projects/adf-office-services-ext/package.json
new file mode 100644
index 000000000..77d977ebe
--- /dev/null
+++ b/projects/adf-office-services-ext/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "@alfresco/adf-office-services-ext",
+  "version": "1.0.0",
+  "license": "LGPL-3.0",
+  "author": {
+    "name": "Keensoft",
+    "url": "http://www.keensoft.es/en/"
+  },
+  "peerDependencies": {
+    "@angular/common": "^7.2.0",
+    "@angular/core": "^7.2.0",
+    "@ngrx/effects": "^7.2.0",
+    "@ngrx/store": "^7.2.0",
+    "@alfresco/adf-extensions": "3.0.0-3a5fe3fb92cdc7397cbfd3d0869833ea1f1fe8d5",
+    "@alfresco/js-api": "3.0.0-d7850f421268e21861e2cd219441b7343efd27ba"
+  }
+}
diff --git a/projects/adf-office-services-ext/src/lib/actions/aos.actions.ts b/projects/adf-office-services-ext/src/lib/actions/aos.actions.ts
new file mode 100755
index 000000000..1a3bd37a0
--- /dev/null
+++ b/projects/adf-office-services-ext/src/lib/actions/aos.actions.ts
@@ -0,0 +1,9 @@
+import { Action } from '@ngrx/store';
+import { MinimalNodeEntryEntity } from '@alfresco/js-api';
+
+export const AOS_ACTION = 'AOS_ACTION';
+
+export class AosAction implements Action {
+  readonly type = AOS_ACTION;
+  constructor(public payload: MinimalNodeEntryEntity) {}
+}
diff --git a/projects/adf-office-services-ext/src/lib/aos-extension.module.ts b/projects/adf-office-services-ext/src/lib/aos-extension.module.ts
new file mode 100644
index 000000000..9f6065730
--- /dev/null
+++ b/projects/adf-office-services-ext/src/lib/aos-extension.module.ts
@@ -0,0 +1,20 @@
+import { ExtensionService } from '@alfresco/adf-extensions';
+import { NgModule } from '@angular/core';
+import { EffectsModule } from '@ngrx/effects';
+
+import { AosEditOnlineService } from './aos-extension.service';
+import { AosEffects } from './effects/aos.effects';
+
+import { canOpenWithOffice } from './evaluators';
+
+@NgModule({
+  imports: [EffectsModule.forFeature([AosEffects])],
+  providers: [AosEditOnlineService]
+})
+export class AosExtensionModule {
+  constructor(extensions: ExtensionService) {
+    extensions.setEvaluators({
+      'aos.canOpenWithOffice': canOpenWithOffice
+    });
+  }
+}
diff --git a/projects/adf-office-services-ext/src/lib/aos-extension.service.ts b/projects/adf-office-services-ext/src/lib/aos-extension.service.ts
new file mode 100644
index 000000000..3c89204cc
--- /dev/null
+++ b/projects/adf-office-services-ext/src/lib/aos-extension.service.ts
@@ -0,0 +1,131 @@
+/* cspell:disable */
+import {
+  AppConfigService,
+  AuthenticationService,
+  NotificationService,
+  AlfrescoApiService
+} from '@alfresco/adf-core';
+import { Injectable } from '@angular/core';
+import { MinimalNodeEntryEntity } from '@alfresco/js-api';
+import { supportedExtensions, getFileExtension } from './utils';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AosEditOnlineService {
+  constructor(
+    private alfrescoAuthenticationService: AuthenticationService,
+    private appConfigService: AppConfigService,
+    private notificationService: NotificationService,
+    private apiService: AlfrescoApiService
+  ) {}
+
+  onActionEditOnlineAos(node: MinimalNodeEntryEntity): void {
+    if (node && node.isFile && node.properties) {
+      if (node.isLocked) {
+        // const checkedOut = node.aspectNames.find(
+        //   (aspect: string) => aspect === 'cm:checkedOut'
+        // );
+        const checkedOut = node.properties['cm:lockType'] === 'WRITE_LOCK';
+        const lockOwner = node.properties['cm:lockOwner'];
+        const differentLockOwner =
+          lockOwner.id !== this.alfrescoAuthenticationService.getEcmUsername();
+
+        if (checkedOut && differentLockOwner) {
+          this.onAlreadyLockedNotification(node.id, lockOwner);
+        } else {
+          this.triggerEditOnlineAos(node);
+        }
+      } else {
+        this.triggerEditOnlineAos(node);
+      }
+    }
+  }
+
+  private getUserAgent(): string {
+    return navigator.userAgent.toLowerCase();
+  }
+
+  private isWindows(): boolean {
+    return this.getUserAgent().indexOf('win') !== -1 ? true : false;
+  }
+
+  private isMacOs(): boolean {
+    return this.getUserAgent().indexOf('mac') !== -1 ? true : false;
+  }
+
+  private onAlreadyLockedNotification(nodeId: string, lockOwner: string) {
+    this.notificationService.openSnackMessage(
+      `Document {nodeId} locked by {lockOwner}`,
+      3000
+    );
+  }
+
+  private getProtocolForFileExtension(fileExtension: string) {
+    return supportedExtensions[fileExtension];
+  }
+
+  private triggerEditOnlineAos(node: MinimalNodeEntryEntity): void {
+    const aosHost = this.appConfigService.get('aosHost');
+    const url = `${aosHost}/_aos_nodeid/${node.id}/${node.name}`;
+    const fileExtension = getFileExtension(node.name);
+    const protocolHandler = this.getProtocolForFileExtension(fileExtension);
+
+    if (protocolHandler === undefined) {
+      this.notificationService.openSnackMessage(
+        `No protocol handler found for {fileExtension}`,
+        3000
+      );
+      return;
+    }
+
+    if (!this.isWindows() && !this.isMacOs()) {
+      this.notificationService.openSnackMessage(
+        'Only supported for Windows and Mac',
+        3000
+      );
+    } else {
+      this.apiService.nodesApi
+        .lockNode(node.id, {
+          type: 'ALLOW_OWNER_CHANGES',
+          lifetime: 'PERSISTENT'
+        })
+        .then(
+          () => {
+            this.aos_tryToLaunchOfficeByMsProtocolHandler(protocolHandler, url);
+          },
+          () => {
+            this.notificationService.openSnackMessage(
+              'Cannot lock the node for editing.',
+              3000
+            );
+          }
+        );
+    }
+  }
+
+  private aos_tryToLaunchOfficeByMsProtocolHandler(
+    protocolHandler: string,
+    url: string
+  ) {
+    const protocolUrl = protocolHandler + ':ofe%7Cu%7C' + url;
+
+    const input = document.createElement('input');
+    const inputTop = document.body.scrollTop + 10;
+    input.setAttribute(
+      'style',
+      'z-index: 1000; background-color: rgba(0, 0, 0, 0); ' +
+        'border: none; outline: none; position: absolute; left: 10px; top: ' +
+        inputTop +
+        'px;'
+    );
+    document.getElementsByTagName('body')[0].appendChild(input);
+    input.focus();
+    location.href = protocolUrl;
+
+    setTimeout(function() {
+      input.onblur = null;
+      input.remove();
+    }, 500);
+  }
+}
diff --git a/projects/adf-office-services-ext/src/lib/effects/aos.effects.ts b/projects/adf-office-services-ext/src/lib/effects/aos.effects.ts
new file mode 100755
index 000000000..b2fee2842
--- /dev/null
+++ b/projects/adf-office-services-ext/src/lib/effects/aos.effects.ts
@@ -0,0 +1,24 @@
+import { Injectable } from '@angular/core';
+import { Actions, Effect, ofType } from '@ngrx/effects';
+import { map } from 'rxjs/operators';
+
+import { AOS_ACTION, AosAction } from '../actions/aos.actions';
+import { AosEditOnlineService } from '../aos-extension.service';
+
+@Injectable()
+export class AosEffects {
+  constructor(
+    private actions$: Actions,
+    private aosEditOnlineService: AosEditOnlineService
+  ) {}
+
+  @Effect({ dispatch: false })
+  openOffice$ = this.actions$.pipe(
+    ofType<AosAction>(AOS_ACTION),
+    map(action => {
+      if (action.payload) {
+        this.aosEditOnlineService.onActionEditOnlineAos(action.payload);
+      }
+    })
+  );
+}
diff --git a/projects/adf-office-services-ext/src/lib/evaluators.ts b/projects/adf-office-services-ext/src/lib/evaluators.ts
new file mode 100644
index 000000000..992e672de
--- /dev/null
+++ b/projects/adf-office-services-ext/src/lib/evaluators.ts
@@ -0,0 +1,45 @@
+import { RuleContext, RuleParameter } from '@alfresco/adf-extensions';
+import { getFileExtension, supportedExtensions } from './utils';
+
+export function canOpenWithOffice(
+  context: RuleContext,
+  ...args: RuleParameter[]
+): boolean {
+  const file = context.selection.file;
+
+  if (!file || !file.entry || !file.entry.properties) {
+    return false;
+  }
+
+  if (file.entry.isLocked) {
+    return false;
+  }
+
+  const extension = getFileExtension(file.entry.name);
+  if (!extension || !supportedExtensions[extension]) {
+    return false;
+  }
+
+  /*
+  if (file.entry && file.entry.aspectNames) {
+    const checkedOut = file.entry.aspectNames.find(
+      (aspect: string) => aspect === 'cm:checkedOut'
+    );
+
+    if (checkedOut) {
+      return false;
+    }
+  }
+  */
+
+  if (file.entry.properties['cm:lockType'] === 'WRITE_LOCK') {
+    return false;
+  }
+
+  const lockOwner = file.entry.properties['cm:lockOwner'];
+  if (lockOwner && lockOwner.id !== context.profile.id) {
+    return false;
+  }
+
+  return true;
+}
diff --git a/projects/adf-office-services-ext/src/lib/utils.ts b/projects/adf-office-services-ext/src/lib/utils.ts
new file mode 100644
index 000000000..43bfa0684
--- /dev/null
+++ b/projects/adf-office-services-ext/src/lib/utils.ts
@@ -0,0 +1,37 @@
+/* cspell:disable */
+export const supportedExtensions = {
+  doc: 'ms-word',
+  docx: 'ms-word',
+  docm: 'ms-word',
+  dot: 'ms-word',
+  dotx: 'ms-word',
+  dotm: 'ms-word',
+  xls: 'ms-excel',
+  xlsx: 'ms-excel',
+  xlsb: 'ms-excel',
+  xlsm: 'ms-excel',
+  xlt: 'ms-excel',
+  xltx: 'ms-excel',
+  xltm: 'ms-excel',
+  ppt: 'ms-powerpoint',
+  pptx: 'ms-powerpoint',
+  pot: 'ms-powerpoint',
+  potx: 'ms-powerpoint',
+  potm: 'ms-powerpoint',
+  pptm: 'ms-powerpoint',
+  pps: 'ms-powerpoint',
+  ppsx: 'ms-powerpoint',
+  ppam: 'ms-powerpoint',
+  ppsm: 'ms-powerpoint',
+  sldx: 'ms-powerpoint',
+  sldm: 'ms-powerpoint'
+};
+/* cspell:enable */
+
+export function getFileExtension(fileName: string): string {
+  if (fileName) {
+    const match = fileName.match(/\.([^\./\?\#]+)($|\?|\#)/);
+    return match ? match[1] : null;
+  }
+  return null;
+}
diff --git a/projects/adf-office-services-ext/src/public_api.ts b/projects/adf-office-services-ext/src/public_api.ts
new file mode 100644
index 000000000..af56fbcbe
--- /dev/null
+++ b/projects/adf-office-services-ext/src/public_api.ts
@@ -0,0 +1,5 @@
+export * from './lib/aos-extension.service';
+export * from './lib/actions/aos.actions';
+export * from './lib/effects/aos.effects';
+
+export * from './lib/aos-extension.module';
diff --git a/projects/adf-office-services-ext/src/test.ts b/projects/adf-office-services-ext/src/test.ts
new file mode 100644
index 000000000..e11ff1c97
--- /dev/null
+++ b/projects/adf-office-services-ext/src/test.ts
@@ -0,0 +1,22 @@
+// This file is required by karma.conf.js and loads recursively all the .spec and framework files
+
+import 'core-js/es7/reflect';
+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/projects/adf-office-services-ext/tsconfig.lib.json b/projects/adf-office-services-ext/tsconfig.lib.json
new file mode 100644
index 000000000..3fe337fcf
--- /dev/null
+++ b/projects/adf-office-services-ext/tsconfig.lib.json
@@ -0,0 +1,32 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../out-tsc/lib",
+    "target": "es2015",
+    "module": "es2015",
+    "moduleResolution": "node",
+    "declaration": true,
+    "sourceMap": true,
+    "inlineSources": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "importHelpers": true,
+    "types": [],
+    "lib": [
+      "dom",
+      "es2018"
+    ]
+  },
+  "angularCompilerOptions": {
+    "annotateForClosureCompiler": true,
+    "skipTemplateCodegen": true,
+    "strictMetadataEmit": true,
+    "fullTemplateTypeCheck": true,
+    "strictInjectionParameters": true,
+    "enableResourceInlining": true
+  },
+  "exclude": [
+    "src/test.ts",
+    "**/*.spec.ts"
+  ]
+}
diff --git a/projects/adf-office-services-ext/tsconfig.spec.json b/projects/adf-office-services-ext/tsconfig.spec.json
new file mode 100644
index 000000000..16da33db0
--- /dev/null
+++ b/projects/adf-office-services-ext/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/projects/adf-office-services-ext/tslint.json b/projects/adf-office-services-ext/tslint.json
new file mode 100644
index 000000000..124133f84
--- /dev/null
+++ b/projects/adf-office-services-ext/tslint.json
@@ -0,0 +1,17 @@
+{
+  "extends": "../../tslint.json",
+  "rules": {
+    "directive-selector": [
+      true,
+      "attribute",
+      "lib",
+      "camelCase"
+    ],
+    "component-selector": [
+      true,
+      "element",
+      "lib",
+      "kebab-case"
+    ]
+  }
+}
diff --git a/src/app.config.json b/src/app.config.json
index dc8b4edc8..1295eebec 100644
--- a/src/app.config.json
+++ b/src/app.config.json
@@ -1,5 +1,6 @@
 {
   "ecmHost": "{protocol}//{hostname}{:port}",
+  "aosHost": "{protocol}//{hostname}{:port}/alfresco/aos",
   "baseShareUrl": null,
   "providers": "ECM",
   "authType": "BASIC",
diff --git a/src/app/extensions.module.ts b/src/app/extensions.module.ts
index 03cebd028..071595f62 100644
--- a/src/app/extensions.module.ts
+++ b/src/app/extensions.module.ts
@@ -1,9 +1,10 @@
 import { NgModule } from '@angular/core';
+import { AosExtensionModule } from '@alfresco/adf-office-services-ext';
 
 // Main entry point for external extensions only.
 // For any application-specific code use CoreExtensionsModule instead.
 
 @NgModule({
-  imports: []
+  imports: [AosExtensionModule]
 })
 export class AppExtensionsModule {}
diff --git a/src/assets/app.extensions.json b/src/assets/app.extensions.json
index 8b9e83629..0c49bb2a9 100644
--- a/src/assets/app.extensions.json
+++ b/src/assets/app.extensions.json
@@ -7,7 +7,7 @@
   "$license": "LGPL-3.0",
   "$runtime": "1.5.0",
   "$description": "Core application extensions and features",
-  "$references": [],
+  "$references": ["aos.plugin.json"],
 
   "rules": [
     {
diff --git a/tsconfig.json b/tsconfig.json
index f06fa76b9..b6dad6889 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -14,7 +14,14 @@
     "lib": ["es2018", "dom"],
     "module": "es2015",
     "baseUrl": "./",
-    "paths": {},
+    "paths": {
+      "@alfresco/adf-office-services-ext": [
+        "dist/@alfresco/adf-office-services-ext"
+      ],
+      "@alfresco/adf-office-services-ext/*": [
+        "dist/@alfresco/adf-office-services-ext/*"
+      ]
+    },
     "resolveJsonModule": true
   },
   "exclude": ["node_modules"],