读取注册表没有64位重定向

JavaScript: Read registry without 64bit redirect?

本文关键字：64位 重定向 注册表 读取      更新时间：2023-09-26

我的64位系统上有以下注册表项:

HKEY_LOCAL_MACHINE'SOFTWARE'Microsoft'Windows'CurrentVersion'Uninstall'CCleaner'DisplayVersion

我正试图用32位JS应用程序阅读它，但我会自动重定向到:

HKEY_LOCAL_MACHINE'SOFTWARE'Wow6432Node'Microsoft'Windows'CurrentVersion'Uninstall'CCleaner'DisplayVersion

(不存在)

下面是我的代码: 
var WshShell = new ActiveXObject("WScript.Shell");
var installedVersion = WshShell.RegRead("HKEY_LOCAL_MACHINE''SOFTWARE''Microsoft''Windows''CurrentVersion''Uninstall''CCleaner''DisplayVersion");

那么我如何在64位操作系统上禁用此重定向(用于RegRead, RegWrite和RegDelete)?

有两种方法:

  1. 在32位Windows script Host (%windir%'SysWOW64'wscript.exe)下运行脚本。在脚本代码中，使用不带Wow6432Node 的键名:

    HKEY_LOCAL_MACHINE'SOFTWARE'Microsoft'Windows'CurrentVersion'Uninstall'CCleaner'DisplayVersion

  2. 使用WMI StdRegProv类读取注册表，并使用__ProviderArchitecture标志强制32位模式。下面是一个例子:

    var HKEY_LOCAL_MACHINE = 0x80000002;
var sValue = ReadRegStr(HKEY_LOCAL_MACHINE,
                        "SOFTWARE''Microsoft''Windows''CurrentVersion''Uninstall''CCleaner",
                        "DisplayVersion",
                        32);  // <------------
WScript.Echo(sValue);
// Reads a REG_SZ value from the local computer's registry using WMI.
// Parameters:
//   RootKey - The registry hive (see http://msdn.microsoft.com/en-us/library/aa390788.aspx for possible values).
//   Key - The key that contains the needed value.
//   Value - The value to get.
//   RegType - The registry bitness: 32 or 64.
function ReadRegStr (RootKey, KeyName, ValueName, RegType)
{
  var oCtx = new ActiveXObject("WbemScripting.SWbemNamedValueSet");
  oCtx.Add("__ProviderArchitecture", RegType);
  var oLocator = new ActiveXObject("WbemScripting.SWbemLocator");
  var oWMI = oLocator.ConnectServer("", "root''default", "", "", "", "", 0, oCtx);
  var oReg = oWMI.Get("StdRegProv");
  var oInParams = oReg.Methods_("GetStringValue").Inparameters;
  oInParams.Hdefkey = RootKey;
  oInParams.Ssubkeyname = KeyName;
  oInParams.Svaluename = ValueName;
  var oOutParams = oReg.ExecMethod_("GetStringValue", oInParams, 0, oCtx);
  return oOutParams.SValue;
}
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