RegistryHive Enumeration
Represents the possible values for a top-level node on a foreign machine.
Assembly: mscorlib (in mscorlib.dll)
| Member name | Description | |
|---|---|---|
| ClassesRoot | Represents the HKEY_CLASSES_ROOT base key on another computer. This value can be passed to the OpenRemoteBaseKey method, to open this node remotely. | |
| CurrentUser | Represents the HKEY_CURRENT_USER base key on another computer. This value can be passed to the OpenRemoteBaseKey method, to open this node remotely. | |
| LocalMachine | Represents the HKEY_LOCAL_MACHINE base key on another computer. This value can be passed to the OpenRemoteBaseKey method, to open this node remotely. | |
| Users | Represents the HKEY_USERS base key on another computer. This value can be passed to the OpenRemoteBaseKey method, to open this node remotely. | |
| PerformanceData | Represents the HKEY_PERFORMANCE_DATA base key on another computer. This value can be passed to the OpenRemoteBaseKey method, to open this node remotely. | |
| CurrentConfig | Represents the HKEY_CURRENT_CONFIG base key on another computer. This value can be passed to the OpenRemoteBaseKey method, to open this node remotely. | |
| DynData | Represents the HKEY_DYN_DATA base key on another computer. This value can be passed to the OpenRemoteBaseKey method, to open this node remotely. |
RegistryHive values are used by the OpenRemoteBaseKey method to represent the top-level node of a requested key on a foreign (remote) machine. The node that can be opened with the OpenRemoteBaseKey method must be one of these top-level RegistryKeys. Further access to the subkeys of the identified node is available using using methods in RegistryKey, so long as the the user has appropriate permission.
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.
Imports Microsoft.VisualBasic Imports System Imports System.IO Imports System.Security.Permissions Imports Microsoft.Win32 <Assembly: RegistryPermissionAttribute( _ SecurityAction.RequestMinimum, _ Read := "HKEY_CURRENT_USER\Environment")> <Assembly: SecurityPermissionAttribute( _ SecurityAction.RequestMinimum, UnmanagedCode := True)> 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
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.