Using TypePerf to get performance data on the command prompt.

I was tracking a high CPU issue this week and needed to know when one of my servers was pegged so I could investigate.  I could of used perfmon I guess but I really like to do everything I can from the command prompt.  I always like it when there is a tool that can…

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Webcast coming up: Looking cool in front of your AD peers in Win2k8

Just got back from vacation and will start getting the posts going again.  Just wanted to mention a webcast coming up from AD administration in Windows 2008 that is going to play next Thursday the 27th.  If you got some time to kill, I’d make this session for sure. TechNet Webcast: Extending Windows Server 2008…


These are a few of my favorite things… (Part 3)

Just some more junk that I use quite a bit that I would share with others in case it can be useful in the wild… Part 1 Part 2    IFEO via GFLAGS I’ve mentioned setting IFEO before but here is the real short way to do it form the command prompt:  Gflags /P /enable notepad.exe…

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Kernel stack not resident (Using .pagein)

You might find yourself debugging an issue and a thread you are interested in is paged out.  Here’s the steps to use to page in the stack for the kernel side and user side…   Be careful when doing this on a live machine that you want to release after debugging as paging in certain section…

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How to catch shutdowns that don’t go to debugger or cause bugchecks

Sometimes a system just goes offline or reboots and we cannot catch it in the debugger or it is not a stop error (bugcheck) so that machine just reboots from underneath you. One technique you can use is to set a breakpoint on nt!NtSetSystemPowerState. This function is the last thing called during ANY type of reboot….

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Hey Admins! Windows System State Analyzer (Beta)

Windows System state analyzer toolHelps create snapshots of the computer—some of which include fixed drives, services, drivers and the registry. Users can create two snapshots at different points in time and compare them to view differences. A detailed report could be generated at the end of a compare operation.   Microsoft is starting to release…

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Domain not available when trying to TS onto a Windows 2003 server.

Issue came in this week where when you attempted to logon to a server it would not authenticate your request and would give you a message indicating the “domain is not available”.  If you tried logging on via your UPN, then it would give a slightly different error message indicating that “there is not enough storage to…

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Discrepancy in volume size when you extend a volume with DISKPART

Had an issue come in today where the customer requested that one of their drives on SAN storage be expanded. They carved out the necessary disk space and expanded the LUN which was verified showing 430GB total on the array. Rescanned in Disk Management and showed the Unallocated Space. They then used diskpart to expand…

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The case of Windows Defender not starting.

Had a client whose machine would not load Windows Defender, each time it was opened it would eventually die on initialization: Log Name:      ApplicationSource:        Application ErrorDate:          8/13/2007 4:03:10 PMEvent ID:      1000Task Category: (100)Level:         ErrorKeywords:      ClassicUser:          N/AComputer:      server1 Description:Faulting application MSASCui.exe, version 1.1.1505.0, time stamp 0x45ad8d6e, faulting module ntdll.dll, version 6.0.6000.16386, time stamp 0x4549d372, exception code…

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How to know if TCP offload is working

  So you went out and got yourself a new server and it came with TOE functionality, and now you’re playing Windows 2008 which has TCP offload enabled but you just want to know if its actually offloading traffic.   Here’s the only way I know of finding what traffic is offloaded without setting breakpoints in the debugger. First off…

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