I don't think this is true, at least for the C++ compiler. There's a 32-bit version producing 32-bit code, a 32-bit version producing 64-bit code and a 64-bit version producing 64-bit code.
Disclaimer: I work at Microsoft, but this is my hazy recollection rather than some kind of informed statement.
Disclaimer: I work at Microsoft, but this is my hazy recollection rather than some kind of informed statement.