How to check if a given user is a member of the built-in Administrators group?

Question

I need to check programmatically (in .NET) whether a given user (domain account) is a member of the built-in Administrators group on a current computer (the one where the ap

Answer 1

I don't know about .Net, but in win32, the easy way is to call IsUserAnAdmin(). If you need more control, you can open the process token and check with CheckTokenMembership for each group you need to check

Edit: See pinvoke.net for .NET sample code (Thanks chopeen)