hi
yep, err...on win32 (but even multi os, hardware...) exist fmod.dll, bass.dll, or minifmod
but only for mod or mod-like xm,s3m...
it's not possible to play exotic mods without xmms/deliplayer/winamp...
except for some convertions (by Estrayk for example)
is it possible to create a deliplayer dll or lib ?
how to play exotic mod in an win32 game, intro, demo...
You learn to code and research the format of the music in question?how to play exotic mod in an win32 game, intro, demo...
Look at the deliplayer formats page. Formats which are in blue or green are played natively by Deliplayer, meaning they were probably easiest to separate away from their tie in with Amiga audio hardware.
Failing that turn to UADE. An open source delitracker emulator for linux which uses parts of UAE to emulate the 68000 and Paula sound chip. Examine the code, if you are a demo coder you should be able to extract what you need.
UADE was previously turned into a plugin for WinAMP. It will be hard work, probably require a bit of Cygwin knowledge, but you should be able to get something going in a short time... or ported over to .NET in the long run.