# ChangeWatcher

**URL:** <https://forum.kirupa.com/t/changewatcher/315470>\
**Category:** flash\
**Created:** [October 27, 2010, 7:48am UTC](https://forum.kirupa.com/t/changewatcher/315470 "2010-10-27T07:48:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jaxz](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@jaxz](https://forum.kirupa.com/u/jaxz)\
**Post date:** [October 27, 2010, 7:48am UTC](https://forum.kirupa.com/t/changewatcher/315470/1 "2010-10-27T07:48:02Z")

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Hi all, I need help to do this:

“Make sure you add the flex framework.swc to your project Library Path to have access to the mx.binding.util class.”

The above is what I need to do to get the ChangeWatcher to work in AS3 CS4 accrding to:  
[http://www.dreaminginflash.com/2008/07/29/flex-bindings-in-as3-projects/](http://www.dreaminginflash.com/2008/07/29/flex-bindings-in-as3-projects/)

So How do I add that framework.swc to my project Library Path?  
Pls spell it out for me - like where do I download that .swc thing?  
Note I only use Flash in CS4 and have no clue yet as to what FLEX is…

Pls advice,  
Jaxz