Somehow, I've deleted the default FSX DC-3.
Let me take you back a few steps......
I found the Awesome foursome repaint pack for FSX(SE) which included the "air freight" paint I really wanted.
I misread the instructions, thinking this was a replacement....but no.
The file shows up, but the "Air" file is missing, which I assume is in the original thing that I deleted.....totally confused.
How can I get the original "air" file back?