Yes, you should be able to query AD for groupPolicyContainer objects and then recursively bind to each one, grab the nTSecurityDescriptor and parse the DACL for ACE entries that have the "Apply Group Policy" permission allowed. From there, determining whether or not a user is in a group is fairly easy. Jamie Nelson | Operations Consultant | BI&T Infrastructure-Intel | Devon Energy Corporation | Work: 405.552.8054 | Mobile: 405.200.8088 | http://www.dvn.com <http://www.dvn.com/> From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of Northwood, Ian Sent: Tuesday, September 30, 2008 9:49 AM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] Determining group associated with a GPO Folks, As part of a licensing audit, I have been asked to build a script to interrogate installed software on machines. Easy enough. However, we want to be able to determine which apps were installed per-user by Group Policy and whether the user concerned is in the group associated with the package. How do I query AD to determine the group associated with the GPO, given that I know: - all the users who have had software pushed to them having logged into the machine (I loop through 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\ Managed\[User's SIDs]\Installer\Products\[PackedProductCode]) - the GPO name and its GUID - the ProductCode, its packed form and its octet/byte array form The idea is that we produce a list of accounts who appear in the registry as having had 'Package X' installed but who are not in the associated group. Liverpool Victoria Friendly Society Ltd. Registered in England and Wales. Registered Office: County Gates Bournemouth England, BH1 2NF, No.61 Coll. Financial Services Authority Register number 110035. This email (and any attachments): - is for its intended recipients only and may contain confidential and /or legally privileged information. If received in error, any use of this email is prohibited. Please delete it (and any copies) and notify us on +44(0)1202 292333, ext. 4044. - is believed to be free of any virus or other defect but internet communications cannot be guaranteed to be secure or error free and we do not accept any liability for any loss or damage from their receipt or use. Opinions expressed in this email are not necessarily those of the Society. LV= and Liverpool Victoria are trade marks of Liverpool Victoria Friendly Society Limited and LV= and LV= Liverpool Victoria are trading styles of the Liverpool Victoria group of companies. LV= reserves the right to monitor and inspect emails sent to and by its employees. To find out more about us please visit: www.lv.com <http://www.lv.com/> ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s), are confidential, and may be privileged. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of all or any portion of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return e-mail, and delete this message and any attachments from your system.