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RegistryKey.OpenRemoteBaseKey Method

Definition

Opens a new T:Microsoft.Win32.RegistryKey that represents the requested key on a remote machine, with the option of specified registry view.

Overloads

OpenRemoteBaseKey(RegistryHive, String)

Opens a new RegistryKey that represents the requested key on a remote machine.

OpenRemoteBaseKey(RegistryHive, String, RegistryView)

Opens a new registry key that represents the requested key on a remote machine with the specified view.

OpenRemoteBaseKey(RegistryHive, String)

Source:
RegistryKey.cs

Opens a new RegistryKey that represents the requested key on a remote machine.

public:
 static Microsoft::Win32::RegistryKey ^ OpenRemoteBaseKey(Microsoft::Win32::RegistryHive hKey, System::String ^ machineName);
public static Microsoft.Win32.RegistryKey OpenRemoteBaseKey (Microsoft.Win32.RegistryHive hKey, string machineName);
static member OpenRemoteBaseKey : Microsoft.Win32.RegistryHive * string -> Microsoft.Win32.RegistryKey
Public Shared Function OpenRemoteBaseKey (hKey As RegistryHive, machineName As String) As RegistryKey

Parameters

hKey
RegistryHive

The HKEY to open, from the RegistryHive enumeration.

machineName
String

The remote machine.

Returns

The requested registry key.

Exceptions

hKey is invalid.

machineName is not found.

machineName is null.

The user does not have the proper permissions to perform this operation.

The user does not have the necessary registry rights.

Examples

The following code example shows how to open a registry key on a remote computer and enumerate the values of the key. The remote computer must be running the remote registry service. Specify the name of the remote computer as a command-line argument when invoking the program.

using namespace System;
using namespace System::IO;
using namespace System::Security::Permissions;
using namespace Microsoft::Win32;


int main( int argc, char *argv[] )
{
   RegistryKey ^ environmentKey;
   
   // Check that an argument was specified when the 
   // program was invoked.
   if ( argc == 1 )
   {
      Console::WriteLine( "Error: The name of the remote computer "
      "must be specified as input on the command line." );
      return  -1;
   }

   try
   {
      
      // Open HKEY_CURRENT_USER\Environment on a remote computer.
      environmentKey = RegistryKey::OpenRemoteBaseKey( RegistryHive::CurrentUser, gcnew String(argv[ 1 ]) )->OpenSubKey( "Environment" );
   }
   catch ( IOException^ e ) 
   {
      Console::WriteLine(  "{0}: {1}", e->GetType()->Name, e->Message );
      return  -1;
   }

   
   // Print the values.
   Console::WriteLine( "\nThere are {0} values for {1}.", environmentKey->ValueCount.ToString(), environmentKey->Name );
   array<String^>^valueNames = environmentKey->GetValueNames();
   for ( int i = 0; i < environmentKey->ValueCount; i++ )
   {
      Console::WriteLine(  "{0,-20}: {1}", valueNames[ i ], environmentKey->GetValue( valueNames[ i ] )->ToString() );

   }
   
   // Close the registry key.
   environmentKey->Close();
}
using System;
using System.IO;
using System.Security.Permissions;
using Microsoft.Win32;

class RemoteKey
{
    static void Main(string[] args)
    {
        RegistryKey environmentKey;
        string remoteName;

        // Check that an argument was specified when the
        // program was invoked.
        if(args.Length == 0)
        {
            Console.WriteLine("Error: The name of the remote " +
                "computer must be specified when the program is " +
                "invoked.");
            return;
        }
        else
        {
            remoteName = args[0];
        }

        try
        {
            // Open HKEY_CURRENT_USER\Environment
            // on a remote computer.
            environmentKey = RegistryKey.OpenRemoteBaseKey(
                RegistryHive.CurrentUser, remoteName).OpenSubKey(
                "Environment");
        }
        catch(IOException e)
        {
            Console.WriteLine("{0}: {1}",
                e.GetType().Name, e.Message);
            return;
        }

        // Print the values.
        Console.WriteLine("\nThere are {0} values for {1}.",
            environmentKey.ValueCount.ToString(),
            environmentKey.Name);
        foreach(string valueName in environmentKey.GetValueNames())
        {
            Console.WriteLine("{0,-20}: {1}", valueName,
                environmentKey.GetValue(valueName).ToString());
        }

        // Close the registry key.
        environmentKey.Close();
    }
}
Imports System.IO
Imports System.Security.Permissions
Imports Microsoft.Win32


Public Class RemoteKey

    Shared Sub Main(commandLineArgs As String())
    
        Dim environmentKey As RegistryKey

        ' Check that an argument was specified when the 
        ' program was invoked.
        If commandLineArgs.Length = 0 Then
            Console.WriteLine("Error: The name of the remote " & _
                "computer must be specified as input on the " & _
                "command line.")
            Return
        End If

        Try
            ' Open HKEY_CURRENT_USER\Environment on a remote computer.
            environmentKey = RegistryKey.OpenRemoteBaseKey( _
                RegistryHive.CurrentUser, _
                commandLineArgs(0)).OpenSubKey("Environment")
        Catch ex As IOException
            Console.WriteLine("{0}: {1}", _
                ex.GetType().Name, ex.Message)
            Return
        End Try

        ' Print the values.
        Console.WriteLine("\nThere are {0} values For {1}.", _
            environmentKey.ValueCount.ToString(), environmentKey.Name)

        For Each valueName As String In environmentKey.GetValueNames()
            Console.WriteLine("{0,-20}: {1}", valueName, _
                environmentKey.GetValue(valueName).ToString())
        Next

        ' Close the registry key.
        environmentKey.Close()
    
    End Sub
End Class

Remarks

The local machine registry is opened if machineName is String.Empty. The requested key must be a root key on the remote machine, and is identified by the appropriate RegistryHive value.

In order for a key to be opened remotely, both the server and client machines must be running the remote registry service, and have remote administration enabled.

See also

Applies to

OpenRemoteBaseKey(RegistryHive, String, RegistryView)

Source:
RegistryKey.cs

Opens a new registry key that represents the requested key on a remote machine with the specified view.

public:
 static Microsoft::Win32::RegistryKey ^ OpenRemoteBaseKey(Microsoft::Win32::RegistryHive hKey, System::String ^ machineName, Microsoft::Win32::RegistryView view);
public static Microsoft.Win32.RegistryKey OpenRemoteBaseKey (Microsoft.Win32.RegistryHive hKey, string machineName, Microsoft.Win32.RegistryView view);
[System.Runtime.InteropServices.ComVisible(false)]
public static Microsoft.Win32.RegistryKey OpenRemoteBaseKey (Microsoft.Win32.RegistryHive hKey, string machineName, Microsoft.Win32.RegistryView view);
static member OpenRemoteBaseKey : Microsoft.Win32.RegistryHive * string * Microsoft.Win32.RegistryView -> Microsoft.Win32.RegistryKey
[<System.Runtime.InteropServices.ComVisible(false)>]
static member OpenRemoteBaseKey : Microsoft.Win32.RegistryHive * string * Microsoft.Win32.RegistryView -> Microsoft.Win32.RegistryKey
Public Shared Function OpenRemoteBaseKey (hKey As RegistryHive, machineName As String, view As RegistryView) As RegistryKey

Parameters

hKey
RegistryHive

The HKEY to open from the RegistryHive enumeration.

machineName
String

The remote machine.

view
RegistryView

The registry view to use.

Returns

The requested registry key.

Attributes

Exceptions

hKey or view is invalid.

machineName is not found.

machineName is null.

The user does not have the necessary registry rights.

The user does not have the required permissions to perform this operation.

Remarks

The local machine registry is opened if machineName is String.Empty. The requested key must be a root key on the remote machine, and is identified by the appropriate RegistryHive value.

In order for a key to be opened remotely, both the server and client machines must be running the remote registry service, and have remote administration enabled.

On the 64-bit versions of Windows, portions of the registry are stored separately for 32-bit and 64-bit applications. There is a 32-bit view for 32-bit applications and a 64-bit view for 64-bit applications. If view is Registry64 but the remote machine is running a 32-bit operating system, the returned key will use the Registry32 view.

Applies to