[python-win32] New IE instance instead of reusing an existing one

[python-win32 at netchan.cotse.net]

The following snippet creates only one instance of IE. Why?

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ie1 = win32com.client.Dispatch("InternetExplorer.Application")
ie1.Visible = 1

ie2 = win32com.client.Dispatch("InternetExplorer.Application")
ie2.Visible = 1
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How can I force Dispatch to create a new instance?

Thanks,
Sandor