But — so it likely has no GUI (command line only) or a heavily stripped Windows Explorer. Possibly a WinPE-like environment, not a full XP.
The 72MB Windows XP ISO is a heavily stripped-down, unofficial modification of the original Windows XP Service Pack 3 (SP3). Standard retail installations of Windows XP typically require around 1.5 GB of disk space and come on a 600MB+ CD-ROM. windows xp lite iso 72mb portable