Runtimes

.NET Framework 2.0 SP1 (x86) | 23.6 MB (Vista already has it)
.NET Framework 2.0 SP1 (x64) | 46.9 MB (Vista already has it)
Automated Installation Kit (AIK) for Windows Vista SP1 | 1375.9 MB (recommended)
Windows Automated Installation Kit (AIK) | 992.2 MB (previous WAIK version)