Windows 98 Second Edition
    RW9MG-QR4G3-2WRR9-TG7BH-33GXB
    RC7JH-VTKHG-RVKWJ-HBC3T-FWGBG 

Windows Millennium
    B88DH-VQ89B-G4WWK-DCBP2-7B7PW
    HBTD9-6P338-XT2MV-QBTTF-WPGGB

Windows 2000 Professional SP4
    DDTPV-TXMX7-BBGJ9-WGY8K-B9GHM