In this episode of Defrag Tools, Andrew Richards, Chad Beeder and Larry Larsen continue looking at the Debugging Tools for Windows (in particular WinDbg). WinDbg is a debugger that supports user mode debugging of a process, or kernel mode debugging of a computer. This installment goes over the Windows Scheduler. We look at Running, Ready and Waiting threads, and talks about the effect of Power Management on scheduling. We use these commands: !running !running -t !ready !dpcs !thread <addr> 17 !thread -1 17 (current thread) Make sure you watch Defrag Tools Episode #1 and Defrag Tools Episode #23 for instructions on how to get the Debugging Tools for Windows and how to set the required environment variables for symbol and source code resolution.