Installing Media Player 9 with a 98lite SLEEK or MICRO shell (using Explorer95)
by LitePC
Windows Media Player 9 requires the Win98 Shell32.dll to register shortcuts and mime settings and so will only install under the Chubby or Overweight shell options. You can use the shellswap feature to change from sleek to chubby and then safely shellswap back to sleek after the install is complete. The culprit is unregmp2.exe that resides in your INF folder.
See also
98lite Professional > Walkthrough a Clean Install of Windows 9x using 98lite
Issues with Apps (9x) > Installing the .NET framework on a 98lite machine
Issues with Apps (9x) > Mozilla, Thunderbird and Firefox lose their settings if the user swaps the active 98lite shell type between the Win98 and Win95 shells (e.g. Sleek to Chubby).
Issues with Win 9x > Installing DirectX9.0 under 98lite
XPlite / 2000lite Professional > XPlite seems unable to disable Windows File Protection.