Forum posts for iexplore.exe

Strange ProcessorAffinity issue with IEXPLORE.exe

I need to launch IE and set the affinity to a particular single CPU.
When running the following c# code, as expected notepad.exe is started and has it's affinity set to just cpu2, strangely iexplore.exe is started with its affinity set to just cpu0. No matter what I set ProcessorAffinity to iexplore.exe always goes to cpu0.

I have tested this on 4 core xp 32 bit and 4 core 2008 64 bit, both IE8.

using System;
using System.Diagnostics;
public id Launch
{

public static void Main(string[] args)
{
lauchWithAffinity('c:/windows/system32/notepad.exe');
lauchWithAffinity('c:/Program Files/Internet Explorer/IEXPLORE.EXE');
}
static void lauchWithAffinity(string exePath)
{
ProcessStartInfo start = new ProcessStartInfo();
start.FileName = exePath;
Process myProcess =Process.Start(start);
myProcess.ProcessorAffinity = (System.IntPtr)4; //3rd cpu aka cpu2
//http://msdn.microsoft.com/en-us/library/system.diagnostics.process.processoraffinity.aspx
}

}

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