GetOriginalCallerSID Method Example
#include <mtx.h>
IObjectContext* pIObjectContext = NULL;
ISecurityProperty* pISecurityProperty = NULL;
PSID pSid = NULL;
HRESULT hr;
// Get a reference to the ISecurityProperty interface.
pIObjectContext->QueryInterface(IID_ISecurityProperty,
(void**)&pISecurityProperty);
// Obtain the original caller's security ID.
hr = pISecurityProp->GetOriginalCallerSID(&pSid)
// Do some security checking here.
// Release the security ID.
pISecurityProperty->ReleaseSID(pSid);