diff --git a/rx.js/rx.js.async.d.ts b/rx.js/rx.js.async.d.ts
new file mode 100644
index 0000000000..98fb930f77
--- /dev/null
+++ b/rx.js/rx.js.async.d.ts
@@ -0,0 +1,22 @@
+///<reference path="rx.js.d.ts" />
+
+// Type definitions for RxJS-Async package 2.2
+// Project: http://rx.codeplex.com/
+// Definitions by: zoetrope <https://github.com/zoetrope>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+//
+// Dependencies:
+// -> rx.js
+// -> rx.async.js
+
+declare module Rx {
+    interface Observable {
+        start<T>(func: () => T, scheduler?: IScheduler, context?: any): IObservable<T>;
+        toAsync<T>(func: Function, scheduler?: IScheduler, context?: any): (...arguments: any[]) => IObservable<T>;
+        fromCallback<T>(func: (...arguments: any[]) => void, scheduler?: IScheduler, context?: any, selector?: (...arguments: T[])=>T): () => IObservable<T>;
+        fromNodeCallback<T>(func: (...arguments: any[]) => void, scheduler?: IScheduler, context?: any, selector?: (...arguments: any[])=>T): (...arguments: any[]) => IObservable<T>;
+        fromEvent<T>(element: any, eventName: string, selector?: (...arguments: any[])=>T): IObservable<T>;
+        fromEventPattern<T>(addHandler: (handler: any)=> void, removeHandler: (handler: any)=> void, selector?: (...arguments: any[])=>T): IObservable<T>;
+        fromPromise<T>(promise: any): IObservable<T>;
+    }
+}
\ No newline at end of file
diff --git a/rx.js/rx.js.async.d.ts.tscparams b/rx.js/rx.js.async.d.ts.tscparams
new file mode 100644
index 0000000000..3cc762b550
--- /dev/null
+++ b/rx.js/rx.js.async.d.ts.tscparams
@@ -0,0 +1 @@
+""
\ No newline at end of file
diff --git a/rx.js/rx.js.d.ts b/rx.js/rx.js.d.ts
index 7baa2fd318..aeefce98fd 100644
--- a/rx.js/rx.js.d.ts
+++ b/rx.js/rx.js.d.ts
@@ -166,31 +166,6 @@ declare module Rx {
 		ensureTrampoline(action: () =>_IDisposable): _IDisposable;
 	}
 
-	// Virtual IScheduler
-	interface IVirtualTimeScheduler extends IScheduler {
-		toRelative(duetime): number;
-		toDateTimeOffset(duetime: number): number;
-
-		clock: number;
-		comparer: (x: number, y: number) =>number;
-		isEnabled: boolean;
-		queue: IPriorityQueue;
-		scheduleRelativeWithState(state: any, dueTime: number, action: (scheduler: IScheduler, state: any) =>_IDisposable): _IDisposable;
-		scheduleRelative(dueTime: number, action: () =>void ): _IDisposable;
-		start(): _IDisposable;
-		stop(): void;
-		advanceTo(time: number);
-		advanceBy(time: number);
-		sleep(time: number);
-		getNext(): IScheduledItem;
-		scheduleAbsolute(dueTime: number, action: () =>void );
-		scheduleAbsoluteWithState(state: any, dueTime: number, action: (scheduler: IScheduler, state: any) =>_IDisposable): _IDisposable;
-	}
-	//export module VirtualTimeScheduler {
-	//    //absract
-	//    function new (initialClock: number, comparer: (x: number, y: number) =>number): IVirtualTimeScheduler;
-	//}
-
 
 	// CatchScheduler
 	interface ICatchScheduler extends IScheduler { }
@@ -379,8 +354,6 @@ declare module Rx {
 	interface Observable {
 		(subscribe: (observer: IObserver<any>) =>_IDisposable): IObservable<any>;
 
-		start<T>(func: () =>T, scheduler?: IScheduler, context?: any): IObservable<T>;
-		toAsync<T>(func: Function, scheduler?: IScheduler, context?: any): (...arguments: any[]) => IObservable<T>;
 		create<T>(subscribe: (observer: IObserver<T>) => void ): IObservable<T>;
 		//create<T>(subscribe: (observer: IObserver<T>) => () => void ): IObservable<T>;
 		createWithDisposable<T>(subscribe: (observer: IObserver<T>) =>_IDisposable): IObservable<T>;
diff --git a/rx.js/rx.js.virtualtime.d.ts b/rx.js/rx.js.virtualtime.d.ts
new file mode 100644
index 0000000000..24d40e6019
--- /dev/null
+++ b/rx.js/rx.js.virtualtime.d.ts
@@ -0,0 +1,37 @@
+///<reference path="rx.js.d.ts" />
+
+// Type definitions for RxJS-VirtualTime package 2.2
+// Project: http://rx.codeplex.com/
+// Definitions by: gsino <http://www.codeplex.com/site/users/view/gsino>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+//
+// Dependencies:
+// -> rx.js
+// -> rx.virtualtime.js
+
+declare module Rx {
+    // Virtual IScheduler
+    interface IVirtualTimeScheduler extends IScheduler {
+        toRelative(duetime): number;
+        toDateTimeOffset(duetime: number): number;
+
+        clock: number;
+        comparer: (x: number, y: number) =>number;
+        isEnabled: boolean;
+        queue: IPriorityQueue;
+        scheduleRelativeWithState(state: any, dueTime: number, action: (scheduler: IScheduler, state: any) =>_IDisposable): _IDisposable;
+        scheduleRelative(dueTime: number, action: () =>void ): _IDisposable;
+        start(): _IDisposable;
+        stop(): void;
+        advanceTo(time: number);
+        advanceBy(time: number);
+        sleep(time: number);
+        getNext(): IScheduledItem;
+        scheduleAbsolute(dueTime: number, action: () =>void );
+        scheduleAbsoluteWithState(state: any, dueTime: number, action: (scheduler: IScheduler, state: any) =>_IDisposable): _IDisposable;
+    }
+    //export module VirtualTimeScheduler {
+    //    //absract
+    //    function new (initialClock: number, comparer: (x: number, y: number) =>number): IVirtualTimeScheduler;
+    //}
+}
\ No newline at end of file
diff --git a/rx.js/rx.js.virtualtime.d.ts.tscparams b/rx.js/rx.js.virtualtime.d.ts.tscparams
new file mode 100644
index 0000000000..3cc762b550
--- /dev/null
+++ b/rx.js/rx.js.virtualtime.d.ts.tscparams
@@ -0,0 +1 @@
+""
\ No newline at end of file