Hotfix KB976035 – Watch out!   Leave a comment

Be very careful of KB976035. It’s broken, on one system anyway.
The hotfix title is "Update Rollup for the TCP Chimney Offload feature in Windows Server 2008 and in Windows Vista"
Seems to be MS’s latest attempt at fixing the persistent issues with ToE.
Under Vista x86 SP2, (Dell D830 with BCM57xx NIC, Intel Wifi 5350, Dell Bluetooth 360) the update causes a BSOD.
But, the crash is only detected when using Driver Verifier. This means the hotfix appears fine but actually has bugs in it that will probably eventually cause weird behaviour or a BSOD,
WinDbg shows:
Probably caused by : tcpipreg.sys ( tcpipreg!InterfaceAddressRegKeyChangeHandler+b2 )
Backing out this hotfix in safe mode resolved the issue.

Posted November 27, 2009 by benryanau in Microsoft

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