6.0.5098.0.winmain_beta1.050628-1740
| Major version | 6 |
| Minor version | 0 |
| Build number | 5098 |
| Build revision | 0 |
| Lab string | winmain_beta1 |
| Build time | 2005-06-28 17:40:00 |
| Family | Windows Vista |
| Source type | Private leak |
| Source details | Beta 1 candidate - sent out to some press members ahead of the Beta 1 proper. The most notable example being Paul Thurrott, who documented the build on his Windows Supersite as Beta 1.<br> |