> I'm confused. First you've said you can compile in 64-bit mode. Now you say the compiler
> cannot be actually invoked. What is happening?

By using the method described earlier (invoking the iclvars.bat file from the shell first) I can compile the examples using bjam, such as hello, and generator.

These work, and are definitely running in 64 bit.

However it doesn't work when, in the same shell, I try to compile boost with it.. my OS pops up these dialogs about not knowing how to open rsp files.