Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1986-2001 Microsoft Corp. C:\WINDOWS>netsh routing ip nat delete addressrange ?
Usage: delete addressrange [name=][start=]
Parameters:
Tag Value
name - The name of the interface for which you want to delete
an address range.
start - The starting IP address of the range being deleted.
Remarks: Deletes an address range from the NAT interface address pool.
Examples:
delete addressrange "Local Area Connection" 10.10.10.1