Do Distribution Servers copy Network Share package for distribution at remote sites?

Do Distribution Servers copy Network Share package for distribution at remote sites?

I am curious if the distribution servers would copy something like MS Office to itself for distribution to the remote clients?
 
I would not want the remote cielnts trying to install the software from Main DC Server.
 
If not...
 
Only solution I see is setting up a Sofftware Library at each remote site and creating seperate packages for the same install, but with thier network paths for each remote site using the remote software library.
 
Dave