IE8 Multiple Iexplore.exe Running In Task Manager

Anyone noticed that IE8 runs multiple iexplore.exe in Task Manager?

And by the way did you notice IE8 behaves differently in that respect when installed on WindowsXP as opposed to Windows 7?

WindowsXP copies of iexplore can use up to 50,000K and every copy uses quite a bit of memory.

Windows 7 copies of iexplore only use about 5-15K.

While using IE8 in WindowsXP I thought I had a malware program running by it using so much memory and exhausted myself trying to run all kinds of scans to root out the offending program only to realize it was IE8 itself. When I uninstalled IE8 and went back to IE7, the behavior stopped.

Just something interesting that might save others the frantic search to root out adware. I suppose the bottom line is DO NOT USE IE8 on WinXP.