Index: /branches/version-2_12-dev/data/class/pages/admin/ownersstore/LC_Page_Admin_OwnersStore.php
===================================================================
--- /branches/version-2_12-dev/data/class/pages/admin/ownersstore/LC_Page_Admin_OwnersStore.php	(revision 21981)
+++ /branches/version-2_12-dev/data/class/pages/admin/ownersstore/LC_Page_Admin_OwnersStore.php	(revision 22033)
@@ -859,5 +859,7 @@
         $result = $tar->extractModify($dir. '/', $unpacking_name);
         GC_Utils_Ex::gfPrintLog('解凍：' . $dir.'/'.$file_name.'->'.$dir.'/'.$unpacking_name);
-
+        // 解凍元のファイルを削除する.
+        unlink($path);
+        
         return $result;
     }