ldap search and group membership

["Sarkar, Sudipta" <Sudipta.Sarkar@workscape.com>]

Hi,
   I have an ldap with some users. I also have few groups and each group has few members. I want to do a search to find out users who match a certain criteria and are member of a certain group i.e give me all users whose last name is Smith and are member of say myGroup. Is there any easy way to do this search.
Thanks in advance.
Sudipta  

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