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CLSIDs not defined using ADSI in VC++.Net 2003

Jim Culpepper
Last Modified: 2012-05-05
I have installed the MS Platform SDK (R2) on my workstation and am using C++ in VS2003.  In my first attempt at writing code to access Active Directory, I find that none of the CLSIDs are defined.  For example, when I compile the following example from Microsoft:

#include <activeds.h>
#include <stdio.h>
int main()
    HRESULT hr;
    hr = CoInitialize(NULL);
    IADsADSystemInfo      *pSys;
    hr = CoCreateInstance(CLSID_ADSystemInfo,
    BSTR bstr;
    hr = pSys->get_UserName(&bstr);
    if (SUCCEEDED(hr))
      printf("User: %S\n", bstr);
    return 0;

I receive Link errors that both CLSID_ADSystemInfo and IID_IADsADSystemInfo are undefined.  

I have made sure that the appropriate subfolders to "C:\Program Files\Microsoft Platform SDK for Windows Server 2003 R2" are referenced in the VC++ Directories under Tools/Options.

What have I not done when installing the SDK?  Or, can you tell me where these CLSIDs are defined?
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