i'm working on an application in MS Visual C++ using Windows API that must download a file and place it in a folder.

I have already implemented the download using URLDownloadToFile function, but i want to create a PROGRESS_CLASS progress bar with marquee style while the file is being downloaded, but it doesn't seems to get animated in the process.

This is the function I use for downloading:

BOOL SOXDownload()
{   
    HRESULT hRez = URLDownloadToFile(NULL,
        "url","C:\\sox.zip", 0, NULL);
    if (hRez == E_OUTOFMEMORY ) {
        MessageBox(hWnd, "Out of memory Error","", MB_OK);
        return FALSE;
    }
    if (hRez != S_OK) {
        MessageBox(hWnd, "Error downloading sox.", "Error!", MB_ICONERROR | MB_SYSTEMMODAL);
        return FALSE;
    }
    if (hRez == S_OK) {
        BSTR file = SysAllocString(L"C:\\sox.zip");
        BSTR folder = SysAllocString(L"C:\\");
        Unzip2Folder(file, folder);
        ::MessageBoxA(hWnd, "Sox Binaries downloaded succesfully", "Success", MB_OK);
    }
    return TRUE;
}

Later I call inside WM_CREATE (in my main window's message processor):

if (!fileExists("C:\\SOX\\SOX.exe")) {
    components[7] = CreateWindowEx(0, PROGRESS_CLASS,
                                NULL, WS_VISIBLE | PBS_MARQUEE,
                                GetSystemMetrics(SM_CXSCREEN) / 2 - 80,
                                GetSystemMetrics(SM_CYSCREEN) / 2 + 25,
                                200, 50, hWnd, NULL, NULL, NULL);
    SetWindowText(components[7], "Downloading SoX");
    SendMessage(components[7], PBM_SETRANGE, 0, (LPARAM) MAKELPARAM(0, 50));
    SendMessage(components[7], PBM_SETMARQUEE, TRUE, MAKELPARAM( 0, 50));
    SOXDownload();
    SendMessage(components[7], WM_CLOSE, NULL, NULL);
}

And as I want, I get a tiny progress bar... But it's not animated, and when I place the cursor over the bar, the cursor indicates that the program is busy downloading the file.

When the download is complete, the window closes as i requested: SendMessage(components[7], WM_CLOSE, NULL, NULL);

So the question is how can I make the bar move while downloading the file? Considering that i want it done with marquee style for simplicity.

Thanks in advance.