Yes I know about lookout, also the MSN search toolbar and the Google
Desktop search can index all my email with no store limitation.
I am just asking for the equivalent of search folders on multiple
stores.

Ken Slovak - [MVP - Outlook] wrote:
Some software such as LookOut can scan multiple stores but by design a
search folder can only search within its own store. It has to create a MAPI
restriction which is a by store thing.