Quick Question about Spells and resources

[Da Rock]

I wondering what IWG2 does with spells. I haven't bothered to re-install this mod, because I had to uninstall BG2. You see, despite having had 5GB free on my game drive, the NWN2 update said I had no space left, after the 1.03 update reached 96%...

Anyway, I digress.

I still have IWG2 on my hard drive, and I noticed that PROJECTL.IDS is in the override directory (not IWD2, but my IWG2 "backup"). This is used in BG2, for spell projectiles. IWD2 does not use this, but keeps the projectile data in the exe.

This is annoying, because you cannot create spell animations for new spells.
Or can you?
Currently, the only way around it is to create spells with scripts, that can execute custom BAMs. However, there always seems to be a delay (to the end of the round)...

So, I want to know - does IWD2 use BG2-style EFF and PRO (and VVC?) files when IWG2 is installed?