Multiple non-conflicting mods

[DCoder]

And finally, if any mix file generation is required then I'm going to need something like DCoder's audio.bag/idx dll but for mix files. I wonder if DCoder would be able to offer his skills once more or if I'm making too many cheeky requests. I also haven't broached the subject of CSF files yet...

Nah, not too many. After all, I have to code stuff for Uni anyway, I might as well make it useful. MIX generation, I would need a fair amount of time to get that one working, but then the LeechKiller code could be integrated as well and toggled by a simple checkbox. CSF construction should be as easy as bag/idx.

I'm happy to read xcml files, but I don't know how - if someone can guide me on how to read this file type and extract the neccessary files and info then this would be possible.

They are just XIF files. Those are Olaf's proprietary format, the only way to figure it out is to read Olaf's source codes. Sourceforge does provide anonymous read access to their CVS, but understanding the code itself can be difficult.

Installer Options:
A) install loose
B) compile into mixes
C) compile into single archive file

Let the author choose, with default to B, then the Launch Base can just copy those without wasting time on generating them each time.

Launch Options:
A) copy loose
B) compile into mixes
C) extract from single archive file

A, copy loose files (including Installer-created mixes) - it should work even if the modder left the stuff loose in the folder, e.g. the mod is in active development and testing state and the files are constantly shuffled and modified.