I put the fbax source code to C:\Program Files\Microsoft Xbox SDK\Samples\Xbox\Graphics, and nasmw.exe to C:\WINDOWS\system32. But when I compile it, I can only get this info: ------ Build started: Project: FBA, Configuration: Release Xbox ------ Performing Custom Build Step nasm: error: more than one input file specified nasm: error: more than one input file specified nasm: error: more than one input file specified type `nasm -h' for help Project : error PRJ0019: A tool returned an error code from "Performing Custom Build Step" Build log was saved at "file://c:\Program Files\Microsoft Xbox SDK\Samples\Xbox\Graphics\fba\obj\msvc\BuildLog.htm" FBA - 4 error(s), 0 warning(s) ---------------------- Done ---------------------- Build: 0 succeeded, 1 failed, 0 skipped Who knows what I am doing wrong?