Windows Vista build 5226 (winmain)
| Build of Windows Vista | |
 | |
| OS family | Windows NT |
|---|---|
| Version number | 6.0 |
| Build number | 5226 |
| Build lab | winmain |
| Compiled on | 2005-08-31 |
Windows Vista build 5226 (winmain) is an unleaked pre-Beta 2 build of Windows Vista. It was shown in the Windows Server "Longhorn": Under the Hood on Storage and Advanced Application Development presentation at PDC 2005.