# AS3 source architecture

**URL:** https://forum.kirupa.com/t/as3-source-architecture/225070
**Category:** flash
**Created:** [May 8, 2007, 4:17pm UTC](https://forum.kirupa.com/t/as3-source-architecture/225070 "2007-05-08T16:17:22Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Flashchump](https://avatars.discourse-cdn.com/v4/letter/f/4da419/32.png) [@Flashchump](https://forum.kirupa.com/u/Flashchump)
#### Post date: [May 8, 2007, 4:17pm UTC](https://forum.kirupa.com/t/as3-source-architecture/225070/1 "2007-05-08T16:17:22Z")

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I am trying to view the base class source files but not all of them are where I expect them to be.

Most of them can be found here:  
Program Files\Adobe\Adobe Flash CS3\en\First Run\Classes

I would expect flash.display.sprite to be located under …\FP9\flash\display, but only the BitMap class is there.  
I would expect the flash.display.MovieClip to be there as well but it is under the …\FP9 directory.