The court considered a creditor's claim that post-confirmation expenses it incurred in obtaining conversion of debtor's chapter 11 case to chapter 7 were administrative expenses under 11 U.S.C. § 503(b)(3)(D) and (b)(4). The court concluded that whether pre-conversion expenses were entitled to administrative priority depended on the policies that underlie the compensation provisions, rather than whether claimant's actions occurred before or after plan confirmation. In particular, claimant must prove that its actions provided a substantial contribution to debtor's case. As creditor had failed to make such a showing, its application for administrative expense priority was denied.