How Can I Share An Iphoto Library Between Two Macs On A Network

After reading the article Save Space On Your Mac By Storing iPhoto & iTunes Libraries Remotely on MakeUseOf,  there is a comment there by Pierre and answer by James saying it’s not possible to for two Macs to use the same iPhoto library concurrently. Is there a way to get around this?

The other thing is, the office is all Windows apart from these two Macs, so I also need recommendations on network solution as the iPhoto library won’t open when on a non-mac formatted network share file system (I.e Windows Server).

Any suggestions?

Thanks