WinDbg v6.12.2.633, part of Debugging Tools for Windows package, famous for debugging memory dumps and kernel mode.
New WinDbg version with bug fixes and enhancements is extracted as standalone package here:
windbg_6.12.0002.633_x64.cab 13 Mb
windbg_6.12.0002.633_x86.cab 15 Mb
