Version Tree

Windows 3.12
├── DOS Branch
│    └── Windows 99
│
└── Windows NT 95
    └── Windows 2001
        ├── EX Branch
        │
        ├── Windows EX RTM
        ├── Windows EX Pro
        └── Windows EX Pro (w/ Setup)

        └── Consumer Releases
            ├── Windows Wista RTM
            ├── Windows VII7
            │
            ├── Windows VII7 Duetsch
            ├── Windows Minemum
            │
            └── Clabria Branch
                ├── Clabria 128K
                ├── Clabria 512K
                ├── Clabria Color Edition
                └── Clabria LC