# Links to external classes

**URL:** <https://forum.kirupa.com/t/links-to-external-classes/274305>\
**Category:** Uncategorized\
**Created:** [October 28, 2008, 9:08am UTC](https://forum.kirupa.com/t/links-to-external-classes/274305 "2008-10-28T09:08:37Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![RossKidd](https://avatars.discourse-cdn.com/v4/letter/r/53a042/32.png) [@RossKidd](https://forum.kirupa.com/u/RossKidd)\
**Post date:** [October 28, 2008, 9:08am UTC](https://forum.kirupa.com/t/links-to-external-classes/274305/1 "2008-10-28T09:08:37Z")

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Hi,

Can someone explain how external classes run?

I donwloaded an external class and the linkage properties on my local system is  
project.classes.scaleMe

Now when I upload to my remote serve the class does not work.

Is the class embedded into the swf and do I need to upload the external classes to my server?

Will the linkage address change from a local to a remote server? Or any other reason why it does not work?

Many thanks.