Microsoft Desktop Search 3

While reloading my computer, I found that there is an upgrade to Microsoft Desktop Search. Version 3 does have one imrovement. It has the capability to index file shares. That could be useful.
So far I’m struggling with one drawback. In the past I have indexed multiple mailboxes. This makes it easier to find account approval emails that might be in on several accounts. I have the two additional accounts opened with this Outlook Profile.
First I tried disabling the new default setting in Desktop Search to only index the local cache. These mailboxes are not part of the local cache. That didn’t help. I have two thoughts left, set up the extra accounts as IMAP accounts or check if the indexing in Outlook 2007 is better.