Query for existence of Registry Key on Remote Machines

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  Enabling winrm is the easiest way.  If you have it enabled you can span out to thousands of computers at once with very minimal effort.  Otherwise, you can use the .NET interface to opening a remote registry.  OR you can use WMI.

  $computername = 'T-Alien'
  
  # Option #1 using winrm and remoting
  Invoke-Command -ComputerName $computername -ScriptBlock {Test-Path HKLM:\SOFTWARE}
  
  # Option #2 using remote registry
  $reg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine', $computername)
  $regKey= $reg.OpenSubKey("Software")
  
  # Option #3 is to use WMI, but I have no code sample for that
  

  
  
  

  ---

  | Blog | Twitter | The Windows PowerShell 2.0 Bible |
  write-host ((0..56)|%{if (($_+1)%3 -eq 0){[char][int]("116111101110117102102064103109097105108046099111109"[($_-2)..$_] -join "")}}) -separator ""

  • Marked as answer by Tiger LiMicrosoft employee Thursday, July 14, 2011 9:23 AM

  Friday, July 8, 2011 12:33 AM
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  Another example:

  $regKey= $reg.OpenSubKey("SOFTWARE\\Microsoft\\Virtual Machine\\Guest\\whatever")

  if (!$regKey)

                 {

                 Write-host "Not Found"

                 }

  else

                 {

                 write-host "Found"

                 }

   

  http://portal.sivarajan.com/2011/04/identify-physical-host-of-virtual.html

  ---

  Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX
  
  Blogs - http://blogs.sivarajan.com/
  Articles - http://www.sivarajan.com/publications.html
  Twitter: @santhosh_sivara - http://twitter.com/santhosh_sivara
  This posting is provided AS IS with no warranties,and confers no rights.

  • Marked as answer by Tiger LiMicrosoft employee Thursday, July 14, 2011 9:23 AM

  Friday, July 8, 2011 4:35 PM
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  Remote Registry PowerShell Module

  • Proposed as answer by SA PRE Monday, July 11, 2011 8:51 AM
  • Marked as answer by Tiger LiMicrosoft employee Thursday, July 14, 2011 9:23 AM

  Thursday, July 7, 2011 9:00 PM