- Y2K Checker 1 s/n: H60 800 078 086
- Yamato Menu 1.4.1J s/n: 422A224
- Yatyo Dokei 2.0.0 s/n: HK-20SK@03108
- Yellow Card 1.0.1J Name: nowhereman s/n: Yc-Qai6tZ6-chgy
- YER 1 Name: Inpher Company: nop s/n: 26131743
- Yorozu Dentaku 1.7J Name: Macintosh s/n: ioaYo0000
- Yutorichan 3.0J s/n: 73021-000862
