Tag Archives: Registry

PowerShell to Configure not to prompt open file security Warning

Exchange 2007, PowershellLeave a comment

Exchange 2010 Automation Tip 2

PowerShell is automation when I ever I say this I feel that I have the Power in me and that’s automation power… Whenever you try double clicking on exe you will prompted for the open file security warning. This does happen when you try to do the same using PowerShell cmdlets. When you trying to automate this on 100 are of server then you need to find some solution. Here is one from me. You need to add the required files into the registry as low risk files. Same can be configured using local Group policy. When configure the GPO, it also edit the values into the registry J . Below PowerShell can use us to add and remove the low risk registry files    

$Lowriskregpath ="HKCU:\Software\Microsoft\Windows\Currentversion\Policies\Associations"$Lowriskregfile = "LowRiskFileTypes"$LowRiskFileTypes = ".exe,.msp"Function Addlowriskfiles()    {    New-Item -Path $Lowriskregpath -erroraction silentlycontinue |out-null    New-ItemProperty $Lowriskregpath -name $Lowriskregfile -value $LowRiskFileTypes -propertyType String -erroraction silentlycontinue |out-null    }Function removelowriskfiles()    {    remove-itemproperty -path $Lowriskregpath -name $Lowriskregfile -erroraction silentlycontinue    }

Low risk files you are very important…!!!

Powershell to work on Remote Registery

PowershellLeave a comment

Working on Remote Registry is always challenging. If you are administrator, I am sure you would have come across various times that you wanted to update registry of the computer and you have to login to the each server and apply the registry. Powershell has made most of our administrator’s life easier. Let’s understand how we can access and edit registry of remote computer using powershell

Let’s understand code with example. Below Script take the list of server name in CSV file and reads each server name one by one and opens the registry Key and prints the value. In this fashion you can get any key and get the value. In the below script I am trying to get the value of HKEY_CurrentUsers. This is the reason current in OpenRemoteBaseKey. If you Access keys of HKEY_Localmachine and use LocalMachine

$csv = Import-Csv "C:\Server.csv"foreach($line in $csv){ $strComputer = $line.CMSName $curreg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('CurrentUser', $strComputer) $curkey="Software\Microsoft\Windows\CurrentVersion\Wintrust\Trust Providers\Software Publishing" $curregKey = $curreg.OpenSubKey($curkey) $curregkey.GetValue('State')} 

If you wanted to get the list of subfolder under the folder in the registry then use the below code. This will get list of all the subfolder MSExchangeIS\Clustername. Getsubkeynames() does this.

<strong>$csv = Import-Csv "C:\Server.csv"foreach($line in $csv) { $cmsName = $line.Node $reg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine', $strComputer) $key="SYSTEM\CurrentControlSet\Services\MSExchangeIS\$cmsName" $regKey = $reg.OpenSubKey($key) foreach($Rkey in $regKey.getsubkeynames())  {  $Rkey   } }

If you wanted to write or edit the remote registry then below code will help. This code will create the new key if the key does not exist else it will edit the existing key to the required value. Below code will create the Dword key if key does not exit there else it will edit the existing key to the required value on the entire computer mentioned in the CSV file.

$csv = Import-Csv "C:\Server.csv"foreach($line in $csv){ $strComputer = $line.Node $curreg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('CurrentUser', $strComputer) $curkey="Software\Microsoft\Windows\CurrentVersion\Wintrust\Trust Providers\Software Publishing" $curregKey = $curreg.OpenSubKey($curkey,$True) $curregkey.SetValue('State','100234','Dword')}