MS VC ATL sample (have built with VS 2010 SP1 + Windows SDK 7.1 and tested on Windows 7 SP1 64-bit with Flash64_11_3_300_257.ocx / Flash32_11_3_300_257.ocx and on Windows XP SP3 32-bit with Flash32_11_3_300_257.ocx):

#pragma pack(push, 1)

typedef struct _FLASH_STREAM_HEADER
{
    DWORD m_dwSignature;
    DWORD m_dwDataSize;
} FLASH_STREAM_HEADER, *PFLASH_STREAM_HEADER;

#pragma pack(pop)

static HRESULT LoadFlashMovieFromResource(ATL::CComPtr<IShockwaveFlash>& spShockwaveFlash,
    UINT nResourceID, LPCTSTR pszResourceType = RT_RCDATA)
{
    HMODULE hModule = ATL::_AtlBaseModule.GetModuleInstance();
    ATLASSUME(hModule != NULL);

    //HINSTANCE hResourceInstance = ATL::AtlFindResourceInstance(nResourceID, pszResourceType);
    //HRSRC hResource = ::FindResource(hResourceInstance, MAKEINTRESOURCE(nResourceID),
    //    pszResourceType);

    HRSRC hResource = ::FindResource(hModule, MAKEINTRESOURCE(nResourceID), pszResourceType);

    if (hResource == NULL)
        return HRESULT_FROM_WIN32(::GetLastError());

    DWORD dwResourceDataSize = ::SizeofResource(hModule, hResource);

    if (dwResourceDataSize == 0)
        return HRESULT_FROM_WIN32(::GetLastError());

    HGLOBAL hResourceLoaded = ::LoadResource(hModule, hResource);

    if (hResourceLoaded == NULL)
        return HRESULT_FROM_WIN32(::GetLastError());

    ATL::CComPtr<IStream> spStream;

    HRESULT hResult = ::CreateStreamOnHGlobal(NULL, TRUE, &spStream);

    if (FAILED(hResult))
        return hResult;

    FLASH_STREAM_HEADER fsh = {0x55665566, dwResourceDataSize};

    ULARGE_INTEGER uli = {sizeof (fsh) + dwResourceDataSize};

    hResult = spStream->SetSize(uli);

    if (FAILED(hResult))

        return hResult;

    hResult = spStream->Write(&fsh, sizeof (fsh), NULL);

    if (FAILED(hResult))
        return hResult;

    hResult = spStream->Write(reinterpret_cast<void*>(hResourceLoaded), dwResourceDataSize, NULL);

    if (FAILED(hResult))
        return hResult;

    uli.QuadPart = 0;

    hResult = spStream->Seek(*reinterpret_cast<PLARGE_INTEGER>(&uli), STREAM_SEEK_SET, NULL);

    if (FAILED(hResult))
        return hResult;

    ATL::CComPtr<IPersistStreamInit> spPersistStreamInit;

    hResult = spShockwaveFlash.QueryInterface(&spPersistStreamInit);

    if (SUCCEEDED(hResult))
        hResult = spPersistStreamInit->Load(spStream);

    return hResult;
}

References:

http://stackoverflow.com/questions/423166/flash-activex-how-to-load-mo vie-from-memory-or-resource-or-stream;

http://www.flasher.ru/forum/blog.php?b=386.