1    /PARENTS

    Format options:

       /PARENTS
       /NOPARENTS (default)

    Specifies whether CDO deletes parents. If you have defined a top
    collection for the context, CDO cannot delete a parent that is
    also a parent of an element outside this collection or collection
    hierarchy.

2    /LOG

    Format options:

       /LOG
       /NOLOG (default)

    Specifies whether CDO displays text confirming that the context
    is deleted.