How to get localized Windows Administrators group name in Inno Setup?

Question

I need to install SQL Server 2008 using Inno Setup. It requires /SQLSYSADMINACCOUNTS to be specified. I want to set it to BUILTIN\Administrators, but the problem is that in localized Windows versions this group's name is different. For example, in Russian version of Windows it's BUILTIN\Администраторы.

How can I get the string name for this group (S-1-5-32-544) in Inno Setup?

Answer 1

You can get the name from a SID using LookupAccountSid API Call.