Important: ADO IID changes made with SP1 for Win7/Win2k8R2 decided to be reverted back, will be fixed!
Please refer to our SQL Server Escalation Services blog post for details :https://blogs.msdn.com/b/psssql/archive/2011/10/03/yes-we-made-a-mistake-and-are-finally-going-to-fix-it.aspx