Windows Media Player 6.4 delivers high-quality audio and video for users and organizations running Windows 95, Windows 98, and Windows NT 4.0.
Minimum:

Pentium 90 MHz processor
16 MB RAM
16-color display card
16-bit sound card
28.8-Kbps modem (optional for local playback)
Windows 95 (audio, illustrated audio, and some video)