You cannot shut down the system after you install certain security updates in Server Appliance Kit (SAK) version 2.0 (893123)

CAUSE

The security updates modify the system shutdown behavior.

Only the following two Microsoft Windows APIs can shut down the system or restart the system:

• ExitWindowsEx
  
  This API requires an interactive user.
• InitiateSystemShutdownEx
  
  This API works with built-in accounts. However, this API requires that the user physically turn off the system.

Microsoft Windows 2000 did not always enforce the interactive user requirement of the ExitWindowsEx API.

For additional information about this issue, click the following article number to view the article in the Microsoft Knowledge Base: Security update MS03-045 also causes the ExitWindowsEx API to enforce the interactive user requirement. Enforcing the interactive user requirement causes inconsistencies in the following:

• Scheduled restarts
• Immediate restarts
• Software update restarts

The hotfix that is mentioned in Microsoft Knowledge Base article 835965 addresses inconsistencies that are corrected by changing to the InitiateSystemShutdownEx API. However, the API change alters the shutdown behavior of the Windows Powered Network Attached Storage (NAS) server. This now prevents you from using the WebUI to schedule a remote shutdown or a remote restart. You must now use a Terminal Services session to remotely shut down the system.