Você precisa estar no contexto 'lan' do netsh para que os comandos do perfil sejam acessíveis:
C:\Users\kce>netsh lan add profile /?
Usage: add profile [filename=]<string> [interface=]<string>
Parameters:
filename - name of the profile XML file
interface - interface name
Remarks:
Parameter filename is required.
It is the name of the XML file containing the profile data.
Parameter interface is optional. It is one of the interface name shown
by "netsh lan show interface" command. If interface name is given,
the profile will be added to the specified interface, otherwise the
profile will be added on all wired interfaces.
Examples:
add profile filename="Profile1.xml" interface="Local Area Connection"
C:\Users\kce>