# 使用PowerShell查找所有注册的CLSID
Get-ChildItem -Path HKLM:\Software\Classes\CLSID, HKCU:\Software\Classes\CLSID

#include <windows.h>
#include <objbase.h>
#include <iostream>

void FindCOMObject(const CLSID& clsid) {
    IUnknown* pUnknown = nullptr;
    HRESULT hr = CoCreateInstance(clsid, NULL, CLSCTX_ALL, IID_IUnknown, (void**)&pUnknown);
    
    if (SUCCEEDED(hr)) {
        std::cout << "COM object found and instantiated successfully." << std::endl;
        pUnknown->Release();
    } else {
        std::cout << "Failed to instantiate COM object. Error: " << hr << std::endl;
    }
}

int main() {
    CoInitialize(NULL);
    
    // 示例：查找Word应用程序的CLSID
    CLSID clsidWord;
    if (SUCCEEDED(CLSIDFromProgID(L"Word.Application", &clsidWord))) {
        FindCOMObject(clsidWord);
    }
    
    CoUninitialize();
    return 0;
}

using System;
using Microsoft.Win32;

class Program {
    static void Main() {
        // 查找所有注册的CLSID
        using (RegistryKey key = Registry.ClassesRoot.OpenSubKey("CLSID")) {
            foreach (string subKeyName in key.GetSubKeyNames()) {
                Console.WriteLine($"CLSID: {subKeyName}");
                
                // 获取更多信息
                using (RegistryKey subKey = key.OpenSubKey(subKeyName)) {
                    string progId = subKey.GetValue("ProgID") as string;
                    if (!string.IsNullOrEmpty(progId)) {
                        Console.WriteLine($"  ProgID: {progId}");
                    }
                }
            }
        }
    }
}