Windows CE 4:
XVQBX-JJGYD-YJXGH-4TCMB-G6VVQ

Windows CE 5:
XVQBX-JJGYD-YJXGH-4TCMB-G6VVQ

Windows Embedded CE 6:
PYHYP-WXB3B-B2CCM-V9DX9-VDY8T

Windows Embedded Compact 7:
PW28V-TRKP8-RW8JQ-QG8MF-23C7F

Windows Embedded Compact 2013:
MVMJ6-JR4RY-RCCKM-F49TB-TGH79