Here are a few common commands that you can use on your dump (.dmp) files in Windbg. Most of the commands are self-explanatory.
How many CPUs are on the machine?
What's the number of Asynchronous Thread Queue (ATQ) threads for this machine?
How many threads are available?
On what kind of machine are the threads running?
|PtNtWorkstation = 1,||// NT Workstation|
|PtNtServer = 2,||// NT Server|
|PtWindows95 = 3,||// Windows 95|
|PtWindows9x = 4||//Windows9x - not implemented|
How many sessions are currently active?
Do you know what this command does?