Create DateTimePicker in Windows 98

I've created a DateTimePicker with this code:

Code:

---

void CreateControls(HWND hwnd) {
    HWND dtpTest = CreateWindowEx(
        0, DATETIMEPICK_CLASS, NULL,
        WS_VISIBLE | WS_CHILD | DTS_UPDOWN,
        8, 8,
        100, 20,
        hwnd, NULL,
        hInst, NULL
    );
}

---

I've also called InitCommonControlsEx() with the ICC_DATE_CLASSES flag. It works fine in Windows XP, but the control isn't created at all in Windows 98.

Am I overlooking something here?

Thanks,
Chris

I finally got it working after hours of banging my head against the wall.

Before I was calling InitCommonControlsEx right after registering my window class. I moved it to the WM_CREATE message handler, and it works. I'm not sure why it wouldn't work the other way, so if anyone can fill me in on that it would be great.

Chris