Как определить версию IE?

HKEY_LOCAL_MACHINE
   Software
      Microsoft
         Internet Explorer

<major version>.<minor version>.<build number>.<sub-build number>

#include <atlbase.h>

BOOL GetIEVersion(DWORD *pMajor, DWORD *pMinor, DWORD *pBuild, DWORD *pSubBuild)
{
    CRegKey rk;
    LONG lRet = rk.Open(HKEY_LOCAL_MACHINE, _T("Software\\Microsoft\\Internet Explorer"), KEY_READ);
    if(lRet == 0)
    {
        TCHAR szBuff[256];
        DWORD dwCount = sizeof(szBuf);
        lRet = rk.QueryValue(szBuff, _T("Version"), &dwCount);
        if(lRet == 0)
        {
            sscanf(szBuff, "%u.%u.%u.%u", pMajor, pMinor, pBuild, pSubBuild);
            return TRUE;
        }
    }

    return FALSE;
}

#include <windows.h>
#include <shlwapi.h>

BOOL GetIEVersion(DWORD *pMajor, DWORD *pMinor, DWORD *pBuild)
{
    BOOL bRes = FALSE;
    
    HMODULE hDll = LoadLibrary(_T("shdocvw.dll"));

    if(hDll)
    {
        DLLGETVERSIONPROC pDllGetVersion;
        pDllGetVersion = (DLLGETVERSIONPROC)GetProcAddress(hDll, _T("DllGetVersion"));

        if(pDllGetVersion)
        {
            DLLVERSIONINFO dvi;
            ZeroMemory(&dvi, sizeof(dvi));
            dvi.cbSize = sizeof(dvi);
            
            HRESULT hr = pDllGetVersion(&dvi);

            if(SUCCEEDED(hr))
            {
                *pMajor = dvi.dwMajorVersion;
                *pMinor = dvi.dwMinorVersion;
                *pBuild = dvi.dwBuildNumber;
                bRes = TRUE;
            }
        }

        FreeLibrary(hDll);
    }

    return bRes;
}