Dan Thomson at myITforum.com

Detecting if a reboot is required: Leveraging Update Services

In my quest to find the best method(s) for detecting if a system reboot is required, I came across the RebootNeeded script at www.wsus.nl.

This function determines if a reboot is needed due installation of patches.

Example

Code

'****************************************************************************
' Function RebootNeeded()
'
' Checks if a reboot is needed.
'****************************************************************************
Function RebootNeeded()

   On Error Resume Next
  
   Dim objSystemInfo
   Dim flgRebootNeeded
   
   flgRebootNeeded = False
   Set objSystemInfo = WScript.CreateObject("Microsoft.Update.SystemInfo")
   If Err.Number <> 0 Then
      Wscript.Echo "Error creating [Microsoft.Update.SystemInfo] object 0x" & Right("0000000" & Hex(Err.Number), 8) & ": " & Err.Description
      Err.Clear
   End If
   flgRebootNeeded = objSystemInfo.rebootrequired
   Set objSystemInfo = Nothing

   RebootNeeded = flgRebootNeeded

End Function

It is probably not evident from the code in the sample above, but the script must be run from the local system to determine if it requires a reboot for a patch to become fully installed.

There is another script (PatchesInstalling) over at the www.wsus.nl site which will determine if a patch installation is in progress.

Published Monday, May 22, 2006 1:09 AM by dthomson