Multiple Address Book for notes client and webclient R5

[henry]

I want my notes client to search multiple address book in the "To:" field
for sending email.
I tried the following stuff:
1) added the corresponding nsf file in NAMES= field of notes.ini file
2) Changed Recipient name lookup to "Exhaustively check all address books"

However, two cases was found when I pressed the "Enter" key
1) it stops once the uncompleted entry is found in my second address
2) it finds multiple entries in my company-wide address book

But the result can never contain entries from both my second address book
and company-wide address book.
And I also would like to know how I can set my second address book for
searching for my web client.

Anybody knows the hints?
Thank you very much!!

Brgds,
Henry