diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 4c71b3a25..5feedd4ae 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -373,6 +373,7 @@ All definitions files include a header with the author and editors, so at some p
 * [Store.js](https://github.com/marcuswestin/store.js/) (by [Vincent Bortone](https://github.com/vbortone))
 * [stylus](https://github.com/LearnBoost/stylus) (by [Maxime LUCE](https://github.com/SomaticIT))
 * [Sugar](http://sugarjs.com/) (by [Josh Baldwin](https://github.com/jbaldwin/))
+* [swfobject](https://code.google.com/p/swfobject/) (by [rou](https://github.com/rou))
 * [Swiper](http://www.idangero.us/sliders/swiper) (by [Sebastián Galiano](https://github.com/sgaliano))
 * [SwipeView](http://cubiq.org/swipeview) (by [Boris Yankov](https://github.com/borisyankov))
 * [Swiz](https://github.com/racker/node-swiz) (by [Jeff Goddard](https://github.com/jedigo))
diff --git a/swfobject/swfobject-tests.ts b/swfobject/swfobject-tests.ts
new file mode 100644
index 000000000..87c14eb4c
--- /dev/null
+++ b/swfobject/swfobject-tests.ts
@@ -0,0 +1,46 @@
+/// <reference path="swfobject.d.ts" />
+
+// access to user agent.
+var userAgent = swfobject.ua;
+console.log(userAgent.w3, userAgent.pv, userAgent.mac, userAgent.win, userAgent.ie, userAgent.wk);
+
+// get flash player version.
+var version = swfobject.getFlashPlayerVersion();
+console.log(version.major, version.minor);
+console.log('hasPlayerVersion', swfobject.hasFlashPlayerVersion('10.0.0'));
+
+// listen to dom load event.
+swfobject.addDomLoadEvent(() => {
+  console.log('dom load event.');
+});
+
+// listen to load event.
+swfobject.addLoadEvent((event?: Event) => {
+  console.log(event);
+});
+
+// embed swf
+swfobject.embedSWF(
+  'test.swf',
+  'myContent',
+  '300',
+  '120',
+  '10.0.0',
+  'expressInstall.swf',
+  {},
+  {},
+  {},
+  () => {
+    console.log('embedded.');
+    console.log(swfobject.getObjectById('myContent'));
+  }
+);
+
+// show express install
+swfobject.showExpressInstall(
+  {},
+  {},
+  'expressInstall',
+  () => {
+  }
+);
diff --git a/swfobject/swfobject.d.ts b/swfobject/swfobject.d.ts
new file mode 100644
index 000000000..98c748d7a
--- /dev/null
+++ b/swfobject/swfobject.d.ts
@@ -0,0 +1,105 @@
+// Type definitions for swfobject v2.2
+// Project: https://code.google.com/p/swfobject/
+// Definitions by: rou <https://github.com/rou>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module swfobject {
+  export var ua: {
+    w3: boolean;
+    pv: number[];
+    wk: any;    // number or boolean
+    ie: boolean;
+    win: boolean;
+    mac: boolean;
+  };
+
+  export function registerObject(
+    objectIdStr: string,
+    swfVersionStr: string,
+    xiSwfUrlStr?: string,
+    callbackFn?: (callbackObj: ICallbackObj) => void
+    ): void;
+
+  export function getObjectById(
+    objectIdStr: string
+    ): HTMLElement;
+
+  export function embedSWF(
+    swfUrlStr: string,
+    replaceElemIdStr: string,
+    widthStr: string,
+    heightStr: string,
+    swfVersionStr: string,
+    xiSwfUrlStr?: string,
+    flashvarsObj?: Object,
+    parObj?: Object,
+    attObj?: Object,
+    callbackFn?: (callbackObj: ICallbackObj) => void
+    ): void;
+
+  export function switchOffAutoHideShow(): void;
+
+  export function getFlashPlayerVersion(): IFlashPlayerVersion;
+
+  interface IFlashPlayerVersion {
+    major: number;
+    minor: number;
+    release: number;
+  }
+
+  export function hasFlashPlayerVersion(
+    rv: string
+    ): void;
+
+  export function createSWF(
+    attObj: ISwfObjectAttribute,
+    parObj: ISwfObjectParameter,
+    replaceElemIdStr: string
+    ): HTMLElement;
+
+  export function showExpressInstall(
+    att: ISwfObjectAttribute,
+    par: ISwfObjectParameter,
+    replaceElemIdStr: string,
+    callbackFn?: (callbackObj: ICallbackObj) => void
+    ): void;
+
+  export function removeSWF(
+    objElemIdStr: string
+    ): void;
+
+  export function createCSS(
+    selStr: string,
+    declStr: string,
+    mediaStr?: string,
+    newStyleBoolean?: boolean
+    ): void;
+
+  export function addDomLoadEvent(
+    fn: () => void
+    ): void;
+
+  export function addLoadEvent(
+    fn: (event?: Event) => void
+    ): void;
+
+  export function getQueryParamValue(
+    param?: string
+    ): string;
+
+  export interface ISwfObjectAttribute {
+    id?: string;
+    width?: string;
+    height?: string;
+  }
+
+  export interface ISwfObjectParameter {
+    flashvars?: string;
+  }
+
+  export interface ICallbackObj {
+    success: boolean;
+    id: string;
+    ref?: HTMLElement;
+  }
+}