It's 2024, and I'm surprised we don't really have a good idea of latest working media players for Windows 2000. I plan to check the following later:
VLC 1.1.9
Haihaisoft Universal Player 1.5.8.0 - Does not work
AllPlayer - I can't find an old version from 2011 - 2014 that's working; corrupted file
MPlayer
UMPlayer - Works, even plays wmv files
SMPlayer
PotPlayer
ZoomPlayer 12.0 - Works, needs codecs for video
GomPlayer
MPC-HC - Only up to version 1.3 works, I think
FullPlayer 6.3 - Does not work
KMPlayer 3.4.0.59 (November 2012) - Works with errors...needs codecs for video...
Total Video Player 1.31 - Works, but doesn't support WMV files
SockPlayer 2.1.4 - Does not work
MSPlayer - Works
vso-media-player - ??? (File was corrupt)
SPlayer
HUPlayer 1.0.5.3 - Does not work
Searching uptodown, softpedia, filehippio, and oldversion for media players. I found an MP4 player for NT 4.0, so nothing is impossible.