1    /ALL

    Specifies that all key definitions in the specified state be
    deleted. If you use the /ALL qualifier, do not specify a key
    name. If you do not specify a state, all key definitions in the
    current state are deleted. Use the /STATE qualifier to specify
    one or more states.

2    /LOG

       /LOG
       /NOLOG

    Controls whether a log message is displayed indicating that the
    specified key definition has been deleted. The default is /LOG.

3    /STATE

       /STATE=(state-name [,...])
       /NOSTATE

    Specifies the names of the states under which the specified key
    definitions are to be deleted. If you specify only one state
    name, you can omit the parentheses. A state name can be any
    appropriate alphanumeric string.

    If you omit the /STATE qualifier of if you use the /NOSTATE
    qualifier, key definitions in the current state are deleted.