A:

The Miles DLL is compiled in ascii character mode so that it can work on Windows 9x without any extra DLLs.

That means if your Miles application is installed in a Unicode path, then the redistributable add-ons (for MP3 playback, DSP filters, etc) won't be found.

So, to fix this, you follow these steps:

1) Have your installer create a normal ascii path under your main application directory for the Miles files (usually you'd do this anyway, creating a "redist" directory).

2) Before calling AIL_startup, use the Win32/Win64 Unicode function SetCurrentDirectoryW to make sure that the current directory is set to your main application directory.

3) Call AIL_set_redist_directory with the relative pathname to your Miles redistribution directory, only put a "*" character in front of the path. So, for example, instead of "redist", use "*redist".

4) Finally, call AIL_startup as you would normally.

All of the files should then load correctly (whether on a Unicode path or not).