It seems like there is no way of retrieving using ArchiveLink to a non-ArchiveLink server.
The only configurations we got was about a standard content server or a paid third party server(OpenText etc), not to a WAMP server that was built from scratch without any configuration.
In the end, we used GOS. There is plentiful guides on how to use it. So our webserver sents a URL to SAP server, then tags it to the appropriate document.
Just click on the attachment list, and its there!
We started from this article here. Your Friendly ABAPer: Oh my GOS!