I mean, if you have a windows server, that's an ideal setup, but if you just have a few computers on a network and want 1 place to go to locate all of the available files, then running it in http mode on a single PC and sharing the link around is just as good.
Prevents you from having to run it on multiple machines redundantly.
It creates a locally hosted web page that you can use to share with everyone on the network a fast file search client.
Highly recommended! Throw in an nginx reverse proxy for https support and you are off to the races.