Unofficial 98MP10 upgrades older Windows Media Player 9.0 (WMP9) files
to newer Windows Media Player 10.0 (WMP10)

98MP10 adds newer WMP10 XP + WMP9 XP SP3 functionality even if you do
NOT see 10.x.x.xxxx build whenever you run WMPLAYER.EXE or MPLAYER2.EXE
in the Help - About Windows Media Player dialog box.

WMP9 build/version does NOT change even after installing 98MP10, because
WMP9 specific core files (like WMP.DLL) canNOT and should NOT be
replaced. If you do replace any of them, WMP9 will lock up. Therefore
when installing any official/unofficial (security) patches/(hot)fixes,
you will be able, just as before, to install ONLY files created
specifically for WMP9 AND Windows 98/98 SP1/98 SE/ME.

http://www.mdgx.com/98mp10/98mp10.php

98MP10 advantages + improvements:

- fixed most WMP9 bugs + security vulnerabilities
- better audio + video hardware rendering
- professional MP3 codec with variable bit rate encoding
- better/faster streaming over networks/internet
- updated DRM support (remove DRM functionality if desired)
- disable WMP Unique-ID (prevents Microsoft from identifying you)
- minor interface changes.