Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1986-2001 Microsoft Corp. C:\WINDOWS>netsh routing ip delete persistentroute ?
Usage: delete persistentroute [dest=][mask=][name=][[nhop=]]
Parameters:
Tag Value
dest - The destination address for the specified route.
mask - The subnet mask for the destination address.
name - The interface for which the route is being deleted.
nhop - The next hop for the route. This is not needed for
routes over point-to-point interfaces.
Remarks: Deletes a persistent static route from the specified interface.
Examples:
delete persistentroute 192.168.1.0 255.255.255.0 "Dial-up Connection"
delete persistentroute 192.168.1.0 255.255.255.0 "Local Area Connection"
nhop=10.0.0.1