WHoSeBox lets you share files from your home server via ftp and http, acting like dropbox's old public links. Once your server is set up for ftp and http file sharing (easy enough via WHS IIS) you can get share links via right click context menus. Quick and Easy to set up...
Context Menus make various operations easy....
Download and Info
Windows IIS - HTTP Serving
Navigate to the indicated location and add a Virtual Directory. You'll then be prompted for an "Alias." This then forms the web address for your http assets.
In the example, "PublicCloud" is a virtual directory, pointing towards a directory within the chosen http directory (WWW Root). So if your server address is myserver.com, your WebURL would be: