I guess would should probably just remove the bat's... it was designed to make things easy, but anyone who needs them can't figure out how to use them, and anyone who knows what they are doing with them can just copy the folders manually.
I was also thinking of adding the original stock folders to the distribution (along the lines of what OKO suggested), but that would perhaps introduce even more problems.
I think we should go batless, just to eliminate one possible source of operator and computer-specific error.
Besides, who plays MP with stock DW anyway?