Let's say you want to put your component source code in
c:\components (or a sub-directory thereof). You can tell Flex
Builder to include that directory structure into the source path:
go to the project's properties and select build path and then use
the source tab and add this new path.
If you are using the SDK compiler, then use the source-path
option to add that path.
Since the path is now part of the compilation process you
don't need to do anything except use it as if it were in the local
directory. For example, if you have
c:\components\com\adobe\Test.mxml you can use it like this: