NAV 2016 Determining which Windows Groups / Active Directory Groups a User belongs to

Hi all,

There are a couple of dozen posts here on MIBUSO that ask the same question in a variety of ways: "How can I see/list/determine which Windows (Active Directory) groups a user belongs to from inside NAV via C/AL code?

The method that works successfully in 2009 is to use the "User SID" virtual table - this works great as long as you are looking at the current user. It doesn't work if you are trying to determine if a different user's groups. However, the "User SID" virtual table does not exist in NAV2016

Other suggestions say to use DotNet functions - but I haven't seen any C/AL code that actually does this except for one example - and that example parses the entire Active Directory, so if you have lots of users and lots of groups, this takes a very long time to process.

Another suggestion is to create a linked SQL server and ADO to query active directory.

So, has anyone seen or created an efficient way to return a list of Windows Groups for a User from within C/AL code?

Thanks

Ron