Microsoft SharePoint 2010 Administration Toolkit 2.0  is a tool that helps Administrators to manage Microsoft SharePoint Foundation 2010 and Microsoft SharePoint Server 2010.

The Version 2.0 of the toolkit nows comes with the SharePoint Diagnostic Studio 2010 which provides the administrators an interface to gather some relevant information from the farm , identify the problems and display the results .
The Microsoft SharePoint 2010 Administration Toolkit v2.0 is supported on the Windows Server 2008 R2 and Windows Server 2008 Service Pack 2
Apart from this , the toolkit also includes additional tools like

• Security Configuration Wizard (SCW) manifests – an attack surface reduction tool introduced with Windows Server 2003 Service Pack 1
• Load Testing Toolkit (LTK), which generates a Visual Studio Team System 2008 (VSTS) load test based on Windows SharePoint Services 3.0 and Microsoft Office SharePoint Server 2007 IIS logs.
• User Profile Replication Engine 2010
• Content Management Interoperability Services connector for SharePoint Server 2010

Download Microsoft SharePoint 2010 Administration Toolkit v2.0  here