COM+ Querry interface failed

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  • Ionut Ceausu

    #1

    COM+ Querry interface failed

    Hello,
    The problem is the folowing one:
    I have a web service, witten in C#, that call a proxy COM (is a server
    out of proc - let's say that implememt IProxyStub - that host another com -
    something like dllhost). If I try to create an instance(CoCrea teInstance) of
    the host com it succeed, but when I QuerryInterface for
    IProxyStub(impl emented by the host com) it failed with COMPlusExceptio n
    0xe0434f4d and hr = 0x80040002. I make debug in host com and from
    QuerryInterface exit with no error code. The error it is somewhere on the
    RPC call (I suspect some rights assignment). Host com is configured to run
    as administrator and can be accessed by everyone.
    Note: host com is written in VC++ 6.0
    The question is why I receive this error code...on the Internet I found
    only questions but no answers. Hope that some of you could help me.
    Thank you.



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