rename file, execute os, etc at compile time

[Johnson Jones via Digitalmars-d-learn]

is it possible to do? I would like to pre-configure some stuff at 
"pre-compilation"(in ctfe but before the rest of the program 
actually gets compiled).

I know it's not safe and all that but in my specific case it 
would help.  I'll probably use pre-build events, which is 
probably the best, but just curious about it in general... I've 
been wanting to write a ctfe virus in D for a while now! j/k.