MollieSoft, If you were aware of Microsofts long history of almost predictable mishandling of data buffers in memory you'd know that ANY Microsoft based server that is exposed to any network traffic is a potential point of entry. The more points of exposure you open on a Microsoft Windows machine the greater the probability that there will be an undocumented remote code execution vulnerability lying there in wait.

A significant vulnerabilty that allowed LAN wide infection of many computers on private LANs was wannacry ransomware worm that used an old NSA exploit in SMB subsystem. Only a fool would think any Microsoft server subsystems were hardened against all current attack vectors.

Even if there was no vulnerability placing an internet facing server on a domestic broadband connection is asking for too much attention and is too vulnerable to bandwidth saturation denial of service attacks.

And yes the risks are completly generic, potential never to be patched vulnerabilites as the DotNet Core is End of life never to be patched or investigated to see if it has any of the vulnerabilites that may be found and patched in the supported newer versions. Personally I prefer Serviio DLNA media server for use on my LAN and not be restricted to streaming just mp3 files but can stream video, photo and audio media. But I would not put that on a shared LAN with other users for the same reasons given about this product even though Serviio is still under active development and does not rely on obsolete Microsoft Core components.

You do not use SSL/TLS so any script kiddie can devise brute force, rainbow or dictionary attacks to obtain user login credentials. It also makes it alot easier to FUZZ the server to expose any parsing irregularities and database injection vulnerabilities.

IMHO the safer option is to create a PHP web application that a customer can license to install on their low cost commercial web server with a real domain name to host their media and let the hosting provider worry about security and bandwidth attacks.

Or just put your audio books onto your mobile devices and use a dedicated audiobook player app!

Morgan Pierce,

"I am staying with W7 Ult 64 bit as long as I possibly can..."

Cool, if that's what you want. Windows 7 & 8 aren't going stop running because of an expiration date. Win7 may be more targeted by cybercriminals, as there will be no more patches as of 1/2020, & there will be no reason for manufacturers to issue drivers. But people continue to use XP, so no reason win7 should be any different. However, as with XP, the majority of people will move on, as will sites and companies from GOTD to Amazon -- it makes little sense not to cater to the vast majority of the market. And as with today's XP users, you might find that stuff that works with win7 starts to become increasingly rare. As long as you remember that it's your choice, no reason for anyone to get upset about it.

"two identical Dell T7500 machines; with dual X5690 chips, Samsung SDD and 128 GB ram in each they. are a pleasure to use. Nothing W10 has or will have comes close. "

Later versions of win10 support more, & older xeon CPUs, in case your decision is based on compatibility. Win10's core is very basically an improved version of what's in win7 -- they behave much the same, though win10 is faster -- with the biggest difference being the interface. If your main concern is performance, then like most gamers on Steam, you likely want win10. If you just can't get past the GUI, that's fine too -- it's your PCs, so your choice.

"I am spending a little time each month learning Linux Debian Mint and all the "MS like" applications that work on them.
I expect GAOTD to eventually be offering Linux apps. FWIW"

Nothing wrong with Linux either, but as you become more experienced in the Linux world, you'll find that the amount of non-server related apps cannot compare to the Windows environment. There's simply not enough Linux software for GOTD to feature an app a day, plus lots of [most?] Linux software is open source, so what would be the point?

TGab, Yes and no, but on the other side your computer is already an open book to Microsoft, Google, Facebook et-al.
But you're right I never trust programs like this one. If necessary I would prefer to run a dedicated computer/network for the task.
On the other side, there are lots of alternatives (free and paid) for audio streaming.