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Hello John,
Say you have multiple Windows Explorer windows opened with all of then opened and using the same process (ex: explorer.exe in Task Manager Processes tab), and if that explorer.exe should crash or freeze, then all of these multiple Windows Explorer windows running under this process will as well.
Say instead you have one Windows Explorer window opened in one explorer.exe process and open another Windows Explorer window with a new explorer.exe process, and if one of those explorer.exe processes crashes, then the other one will not be affected by it. No performance benefit with this other than more redunancy and reliability. Think of it how Internet Explorer does this with mulitple tabs. This is why you see multiple iexplorer.exe processes entries in Task Manager. One for each tab + Internet Explorer itself. If one tab should crash, the other ones still work and you just need to close the crashed one.
Hope this helps,
Shawn |