Unfortunately the bandwidth at the office is pretty stretched already and while I could work around it by using port 80 I wouldn't feel right about doing it.
That's understandable. And, the bug you reported seems pretty silly and should probably be fixed.
However... Just so you know...
MC's Library Server system is actually pretty lightweight on network usage,
so long as you aren't using it to stream the actual content from your server. You might not be aware of this, but by default, MC Clients will try to use local copies of content before it asks the server to stream them. So, if:
1.
Tools > Options > Media Network > Client Options > Play local file if one that matches Library Server file is found is enabled on the client copy of MC (as it is by default).
2. The client has local copies of the media files and they are accessible
via the exact same drive letter and path (or UNC path) on the Client as they are on the Server.
Then all MC's Server will transfer to the Client when you connect is the compressed Library itself, and then periodic deltas to sync changes back to the Server.
So, one of the ways I use this is with my backup system. I have an external drive (two actually, and each one is one of those
two-disk RAID-in-a-Box USB things) that is large enough to hold copies of my primary Media Library. I keep one of these two USB drives connected to my main Server at home, and the other one at work, and I have SyncBack SE set to automatically sync most of my Media Library (the stuff I care about, pruned so that it'll fit and cover most of the stuff I'd use) over to the external volume that is at home periodically.
Then, every so often, I swap the two (when I think of it, and actually, I'm due for a swap soon). I bring the work one home, and plug it in, and bring the home one back to work the next day.
This serves two purposes: I have an offsite backup (key if my house burns down or the washing machine hose breaks and floods my house, or whatever) and I get local access to most of my media without having to stream it all to work. When I travel, I can easily grab this disk and bring it along and I have all my stuff (even high-quality video) on the road and it can be used with my laptop.
As long as I mount this drive on my computer at work (or on my laptop) using the same drive letter that I use at home, It Just Works, because all the file paths match, and then MC (even in Client mode) uses the local files. The best thing is that this still lets me access the newest stuff and my "current home Library" from work (since the Library Server will happily stream anything the Client doesn't find and then asks for), and it keeps all my Play Stats in sync nicely.
Works quite well, and I wasn't sure if you were aware that this was possible.