Thanks, Eric. I actually asked the question incorrectly. What I meant was if I can install like this:
/site/aspuploader
/site/folder/app1
/site/folder/app2
etc.
This is what doesn't work. If I copy the aspuploader folder into each app folder, it works, but that's not pratical for my situation. My include looks like this:
<!--#include file="../../../aspuploader/include_aspuploader.asp" -->
Is there not a way to set the base path?