MPC-HC is designed specifically for NTx OSes, particularly for Vista + 7 [the developer built it and tested it on Vista].
Media Player Classic HC v1.2.908.0
I didn't know this version worked on Win98SE. Is it buggy, has anyone tested this? Is it better or worse than the classic version. Please shed some light my way.
Therefore it won't work with 9x OSes, even if using KernelEx.
CCCP codecs pages have a Wiki guide for MPC:
The Wikipedia page for MPC might also have some references you can use:
You could also try the older [but good reference] MPC HTML Help file:
And when all else fails, there's always VideoHelp: