Replace a corrupted file without Windows

Windows will not load on this laptop running XP Home.
It displays an error stating “ \system32\hal.dll File is missing or corrupted. Reinstall this file.”
If I copy this file from another machine and put it on a floppy, will it work on this different machine?
And,
If I use a boot disk to boot into DOS mode, what are the DOS commands to copy this file from the floppy to the appropriate location?