For every IE8 window you open, there will be two instances of IEXPLORE.EXE.
See http://blogs.msdn.com/ie/archive/200...liability.aspx
(applies to IE8 Final)

walkerwj wrote:
> Sorry, yes, it IS IE8, not 7.
>
> "PA Bear [MS MVP]" wrote:
>> Are you saying that you have one (1) IE window open and you see two (2)
>> instances of IEXPLORE.EXE in Task Manager?
>>
>> Are you sure you're not running IE8?
>> --
>> ~Robear Dyer (PA Bear)
>> MS MVP-IE, Mail, Security, Windows Client - since 2002
>>
>>
>> walkerwj wrote:
>>> I am running a Dell computer (1 GHz PIII, 512MB RAM) with XP SP3. For
>>> some
>>> reason I have noticed that IE 7 is running two processes under Task
>>> Manager,
>>> both identically named but one with less Mem Usage. Other computers,
>>> Dell
>>> and HP also running XP SP3 with IE7 are only running one process. I have
>>> run AVG antivirus and have come up with no concerns on the system. Has
>>> anyone else seen this or experienced this issue? Thanks.