Hi again. I have read the matter and i have a problem with creating boot files for xp. Problem is that i have windows7 and cant execute xpSource/i386/winnt32.exe /create.. /noreboot command 1. Is there other way to obtain required files? 2. If xp source is nlited or with integrated drivers, does it affects something? Thanks Edit: Going through usb_multiboot.cmd i found that it creates $WIN_NT$.~BT by copying files from [FloppyFiles.Number] where Number is not 'x'. Can someone confirm me this? Edit2: Still figuring out the other folder but usb_multiboot.cmd is best tutorial i could find. Thanks! 3. And one more question. It seems that everyone is using ntldr with boot.ini as first loader and if needed they load a grub4dos. Is it possible to load everything from grub4dos (xp/7 installation, linux installations, other boot disks)?