PowerShell Script Required for Export Total Users with Description, Username, Domain Name in Group

Hi All,

In My root Domain [ 2008 R2] have one "Universal Security" Group created only in rot domain  which is having members of both root & child domains. My client want to generate reports on every months with below details

1. Total Users with Description, Username, Domain Name in that Group.

I have tried "ADGroupMembers" Tool which only list the Total users which couldn't help and some External tools like ADINFO only list the members of Root Domain and child domain users were missing.

Pls help to run some power shell commands or VBscript in order to meet teh requirement [Export Total Users with Description, Username, Domain Name in Group.]