C# 如何在注册表项中搜索特定值
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How to search for specific value in Registry keys
提问by
How can I search for specific value in the registry keys?
如何在注册表项中搜索特定值？
For example I want to search for XXX in
例如我想在 XXX 中搜索
HKEY_CLASSES_ROOT\Installer\Products
any code sample in C# will be appreciated,
将不胜感激 C# 中的任何代码示例，
thanks
谢谢
回答by Galwegian
Help here...
在这里帮助...
Microsoft has a great (but not well known) tool for this - called LogParser
微软有一个很棒的（但不是众所周知的）工具 - 称为LogParser
It uses a SQL engine to query all kind of text based data like the Registry, the Filesystem, the eventlog, AD etc... To be usable from C#, you need to build an Interop Assembly from the Logparser.dll COM server using following (adjust LogParser.dll path) command.
它使用 SQL 引擎来查询所有类型的基于文本的数据，如注册表、文件系统、事件日志、AD 等...要从 C# 使用，您需要使用以下方法从 Logparser.dll COM 服务器构建一个互操作程序集（调整 LogParser.dll 路径）命令。
tlbimp "C:\Program Files\Log Parser 2.2\LogParser.dll"
/out:Interop.MSUtil.dll
Following is a small sample, that illustrates how to query for the Value 'VisualStudio' in the \HKLM\SOFTWARE\Microsoft tree.
以下是一个小示例，它说明了如何在 \HKLM\SOFTWARE\Microsoft 树中查询值“VisualStudio”。
using System;
using System.Runtime.InteropServices;
using LogQuery = Interop.MSUtil.LogQueryClass;
using RegistryInputFormat = Interop.MSUtil.COMRegistryInputContextClass;
using RegRecordSet = Interop.MSUtil.ILogRecordset;
class Program
{
public static void Main()
{
RegRecordSet rs = null;
try
{
LogQuery qry = new LogQuery();
RegistryInputFormat registryFormat = new RegistryInputFormat();
string query = @"SELECT Path from \HKLM\SOFTWARE\Microsoft where
Value='VisualStudio'";
rs = qry.Execute(query, registryFormat);
for(; !rs.atEnd(); rs.moveNext())
Console.WriteLine(rs.getRecord().toNativeString(","));
}
finally
{
rs.close();
}
}
}
回答by Arnout
In case you don't want to take a dependency on LogParser (as powerful as it is): I would take a look at the Microsoft.Win32.RegistryKeyclass (MSDN). Use OpenSubKeyto open up HKEY_CLASSES_ROOT\Installer\Products, and then call GetSubKeyNamesto, well, get the names of the subkeys.
如果您不想依赖 LogParser（尽管它很强大）：我会看看这个Microsoft.Win32.RegistryKey类（MSDN）。使用OpenSubKey打开HKEY_CLASSES_ROOT\Installer\Products，然后调用GetSubKeyNames，好，获取子项的名称。
Open up each of those in turn, call GetValuefor the value you're interested in (ProductName, I guess) and compare the result to what you're looking for.
依次打开其中的每一个，调用GetValue您感兴趣的值（我猜是 ProductName）并将结果与您要查找的值进行比较。
