User Management using ADSI

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Introduction

The listing demonstrates how to use Active Directory Service to manage the users on WinNT and Windows 2000.

IADsContainer interface lets you crawl through the active directory. To manage users, you need to get ADS object with path WinNT://DomianName/MachineName. IADsWinNTSystemInfo interface provides this information. Once we have a container, we enumerate through the container and if the object supports IADsUser interface, we add it as the user in the ListView. IADsUser then lets you manage properties for individual users.

//Get the Information about system name and domain name

IADsWinNTSystemInfo *pNTsys;
HRESULT hr = CoCreateInstance(CLSID_WinNTSystemInfo, 
   NULL,CLSCTX_INPROC_SERVER, 
   IID_IADsWinNTSystemInfo,  (void**)&pNTsys);
pNTsys->AddRef();
BSTR bstrCompName;
pNTsys->get_ComputerName(&bstrCompName);
CString cscompName=bstrCompName;
SysFreeString(bstrCompName);
BSTR bstrDomainName;
pNTsys->get_DomainName(&bstrDomainName);
CString CSDomainName=bstrDomainName;
SysFreeString(bstrDomainName);
pNTsys->Release();

//Form ADSPath
ADSPath.Format("WinNT://%s/%s",CSDomainName,cscompName);

//Get the container object
hr=ADsGetObject(ADSPath.AllocSysString(),IID_IADsContainer,(void **)&pUsers);

//Now Enumerate through the container
IEnumVARIANTPtr pEnum; 
ADsBuildEnumerator (pUsers,&pEnum);
int cnt=0;
while(1)
{
    _variant_t vChild;
    hr=ADsEnumerateNext (pEnum,1,&vChild,NULL);
    //Iterate as long as you get S_OK 
    if(hr!=S_OK)
        break;
    hr=vChild.pdispVal->QueryInterface (IID_IADsUser,(void **)&pChild);
    if(hr!=S_OK)
        continue;
    else
        //This object is user
}