<PermissionSet class="System.Security.NamedPermissionSet"
   version="1"
   Name="DiskSizePermission"
   Description="Allows you to access the size of a disk">
   <IPermission class="DiskPermission, diskperm, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c7611f8614380ed3"
      version="1" 
      Access="Size"/> 
</PermissionSet>
