FilterAttach gives 0x80070032, different results on different computers, same code

Discussion in 'Windows Vista Drivers' started by, Mar 9, 2007.

  1. given usermode program tester.exe and kernel minifilter tester.sys and
    tester.inf, and cleaning out all tester.* from c:\winnt\*, and
    removing all pertinant "tester" fom the registery,

    using the same compiled code on two machines, I install the usermode
    program (which is a service) and the driver with:

    sc create testerService binpath= c:\tester\tester.exe
    rundll32.exe setupapi,InstallHinfSection DefaultInstall 132 c:\tester
    sc queryex testerService
    sc queryex testerDriver

    and both are loaded.

    Everything else I can think of being equal, upon starting the service,
    one machine calls FilterAttach() successfully and one machine receives
    0x80070032 from FilterAttach() !!!

    What to do!?

    it appears that the returned hr is encoding ERROR_NOT_SUPPORTED, so
    what to do!

    I can find ZERO documentation on this behavior short of my previous
    and somewhat related post.
    the difference being that this error is being received not on a single
    attempted FilterAttach().
, Mar 9, 2007
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