Connect to:
\\[ServerName]\root\MicrosoftIISv2
In the connection dialog:
If you are logged in as a user who has admin rights on the server then check ‘Login as current user’, otherwise uncheck it and enter the credentials of a user who does.
Click ‘Options>>’ button:
Set Impersonation level to ‘Impersonate’
Set Authentication level to ‘Packet Privacy’
Check ‘Enable all privileges’
Click ‘OK’ and hey presto!