# Update Native AS3 Classes?

**URL:** <https://forum.kirupa.com/t/update-native-as3-classes/320204>\
**Category:** flash\
**Created:** [March 16, 2011, 5:47pm UTC](https://forum.kirupa.com/t/update-native-as3-classes/320204 "2011-03-16T17:47:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Flashticles](https://avatars.discourse-cdn.com/v4/letter/f/ed655f/32.png) [@Flashticles](https://forum.kirupa.com/u/Flashticles)\
**Post date:** [March 16, 2011, 5:47pm UTC](https://forum.kirupa.com/t/update-native-as3-classes/320204/1 "2011-03-16T17:47:53Z")

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Is there any way to update the native AS3 classes short of purchasing a newer version of Flash?

A native class has some additional functionality I’d like to use but do not have access to it currently (I am using CS4). A co-worker using CS5 does have access to the property.

I’m not sure if it’s relevant, but I’m trying access the **backBufferLength** property of the \*\*flash.net.NetStream \*\*class.

Any idea?