Free Tool to Generate Group Membership List

Are you wanting something that enumerates AD and generates a complete report of all Groups, or are you wanting something that gives you a report of one group?

The easiest way to do it is if you can use the Quest AD cmdlets and use Get-QADGroupMember from here:
 http://www.quest.com/activeroles-server/arms.aspx  
   
 If you need to do it with code then  
   
 $group = [ADSI] "LDAP://cn=Accounts,ou=AllGroups,dc=starking,dc=org"  
 foreach ($member in $group.member)  
 {  
 $member  
 }  

If your group has over 1000 members, this will only grab the first 1000.  If you need more than that, try these sources:

Enumerating Groups That Contain Many Members  
 http://msdn2.microsoft.com/en-us/library/ms676302.aspx  
   
 Enumerating Members in a Large Group  
 http://msdn2.microsoft.com/en-us/library/ms180907.aspx  
   
 Searching Using Range Retrieval  
 http://msdn2.microsoft.com/en-us/library/aa367017.aspx  
   
 Attribute Range Retrieval  
 http://msdn2.microsoft.com/en-us/library/aa772308.aspx

Justin

we are using dumpsec to generate reports it a free and very complete reporter
you can find it here
http://www.systemtools.com/somarsoft/?somarsoft.com
Regards,
Jose

There is also "MemberOf"


http://joeware.net/freetools/tools/memberof/index.htm


usage

http://joeware.net/freetools/tools/memberof/usage.htm

Here is a script from farhan that gets all group members to a file

* Following batch script will get all the members of groups that are specified in Groups.txt file.
* It will generate a file on C: drive root with name GroupMembers.txt having all members information.
* Copy and paste following script in notepad and save it with .BAT extension.