If I were you, I would use the Phoenix Emulator 3.11 the original one.
Then setup a licence server using BIND. That would fix your so called
problem, for the mean time.
((-(-_(-_-)_-)-)) Jambo ((-(-_(-_-)_-)-))
I would advise you against using Azure emulator, many have sugguested it but what they don't realise is that it has different duplication bugs, and other major bugs. I have seen comet run with over 3000+ online, and if you have a hotel with this many users, i'm sure you can aford whatever the cost of comet is. Otherwise i would advise you to hire someone to complete and fix a emulator for you. There are alot of stable emulators out there, but they are not just download and direct use. Plus emu, there is a comet server release, fresh emu and firewind all of these are stable, but they need alot of work done on them so that they can be ran on a hotel like yours.
Hope you find what you are looking for!
Thanks but my mate found a phoenix emulator and fixed it up.. Close thread please :)