sFilter vs. FileSpy

Hi,

Introduction:

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I am writing a filter driver based on the FileSpy sample provided with the IFS Kit, My current filter is based of FileSpy and I am trying to switch to the sFilter sample as I don’t need all of the functionality introduced by FileSpy.

Problem description:

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Using FileSpy I get indication for each file creation through IRP_MJ_CREATE ( of the appropriate FS device ).

Using the sFilter sample I don’t get such Indications…

Why don’t I get these indications using the sFilter sample? I have verified all of the FS device stack are being hooked to while sFilter is loading ( through the IoRegisterFsRegistartionChange API called by from the DriverEntry ).

I have compared sFitler relevant code with it’s FileSpy counterpart and didn’t find any meaningful difference… I guess I have missed something…

Any help comment or remark would be appreciated…

Naddav.


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