# Object.__proto__

#### Availability

Flash Player 5. If you are using ActionScript 2, use instead of this property.

#### Usage

    myObject.__proto__

#### Parameters

None.

#### Description

Note: If you are using ActionScript 2, use instead of this property.

Property; refers to the `prototype` property of the constructor function that created `myObject`. The `__proto__` property is automatically assigned to all objects when they are created. The ActionScript interpreter uses the `__proto__` property to access the `prototype` property of the object's constructor function to find out what properties and methods the object inherits from its class.