The etsysPolicyProfileIndex for which the rule is defined.
A value of zero(0) has special meaning in that it scopes
rules which are used to determine the Policy Profile to
which the frame belongs. See the etsysPolicyRuleResult1
and etsysPolicyRuleResult2 descriptions for specifics of
how the results of a rule hit differ when the
etsysPolicyRuleProfileIndex is zero.