I've got a 64-bit project in MSVC++ 2005 that builds just fine on my own machine, which is XPSP2. Another machine, running 2000SP4, never builds the 64-bit platform in my project. If I open the batch build dialog and tell it to build the 64-bit version, it doesn't do anything. The output window just has "1 skipped," if anything at all. There is no existing previous output at all.
I don't get it at all, really. My machine is the one I used to develop the project, and the box running 2000 is the main build machine, so I need it to work there.