MS released such combos with the MSDN monthly shipment (real CD/DVD) to customers with a global contract eg this is the Greek version (RTM) 7776903AB262CABCB44E59540B02FE8FCB4A910E *[ELL] el_winxp_home_Pro_combo2600_FPP_20020205.iso but most versions on the www are homebrew (include slipstream sp's, serials, and other f**g crap)
Yours is definitely homemade This is the original MSDN version with the RTM, Home and Pro versions MSDN 2002-04 - 1366 Size: 533 MB