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After you install the full version of the Network Monitor tool on a Microsoft Windows 2000-based computer, the Network Monitor driver is not added to Local Area Connection properties. Note that this problem does not occur unless you install the full version of the Network Monitor tool.
This problem can occur if a Local Area Connection Properties dialog box is open when you install the Network Monitor tool. The Network Monitor installation program cannot automatically add the Network Monitor driver if this dialog box is open.
To work around this problem, use either of the following methods:
Verify that there are no Local Area Connection Properties dialog boxes open before you install Network Monitor.
Install the Network Monitor driver again from the Local Area Connection Properties dialog box.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.