Sysinternals LiveKD 5.61
Software Product Description
While the latest versions of Windbg and Kd have a similar capability on Windows XP and Server 2003, LiveKD enables more functionality, such as viewing thread stacks with the !thread command, than Windbg and Kd's own live kernel debugging facility.
Client: Windows XP and higher.
Server: Windows Server 2003 and higher.