In a build operation I am attempting to do on Windows (7, if it matters), I need to execute the command dd status=noxfer conv=notrunc if=data.bin of=disk.flp on object code from assembly (nasm with -f bin). Is there a way to do this without installing any programs? To reiterate, installation of third-party programs is entirely impossible on this workstation.
Unless I'm missing something all you want is to append the data from data.bin file to the end of disk.flp file. If so, it should be easy with CreateFile - SetFilePointer (to the end of file) - WriteFile