检查应用程序安装在注册表中 [英] Check if application is installed in registry

问题描述

现在我用这个来列出在注册表中为32位和放大器中列出的所有应用程序; 64。
我已经看到了如何检查其他例子如果应用程序没有任何运气安装。

Right now I use this to list all the applications listed in the registry for 32bit & 64. I have seen the other examples of how to check if an application is installed without any luck.

string registryKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall";
RegistryKey key = Registry.LocalMachine.OpenSubKey(registryKey);
if (key != null)
{
    foreach (String a in key.GetSubKeyNames())
    {
        RegistryKey subkey = key.OpenSubKey(a);
        Console.WriteLine(subkey.GetValue("DisplayName"));
    }
}

registryKey = @"SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall";
key = Registry.LocalMachine.OpenSubKey(registryKey);
if (key != null)
{
    foreach (String a in key.GetSubKeyNames())
    {
        RegistryKey subkey = key.OpenSubKey(a);
        Console.WriteLine(subkey.GetValue("DisplayName"));
    }
}

所以这个片段中列出了这一切在控制台窗口和我所试图做的是
随便找一个节目标题显示出来的名称列表，看它是否安装。

So this snippet lists it all in the console window and what I am trying to do is just find one program title out of the list of display names to see if it's installed.

我试过的最后一件事是

if (subkey.Name.Contains("OpenSSL"))
    Console.Writeline("OpenSSL Found");
else
    Console.Writeline("OpenSSL Not Found");

什么我想回来有误或假阳性。是否有任何人能告诉我怎么随便抓一个标题淘汰之列？

Anything I tried came back either false or a false positive. Is there anyone that can show me how to just grab a title out of the list?

请不要发布了著名的私有静态无效IsApplicationInstalled（p_name）函数。它不工作，为我所有。

Please don't post up the well-known private static void IsApplicationInstalled(p_name) function. It does not work for me at all.

推荐答案

搜索和故障排除之后，我得到它的工作是这样的：

After searching and troubleshooting, I got it to work this way:

public static bool checkInstalled (string c_name)
{
    string displayName;

    string registryKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall";
    RegistryKey key = Registry.LocalMachine.OpenSubKey(registryKey);
    if (key != null)
    {
        foreach (RegistryKey subkey in key.GetSubKeyNames().Select(keyName => key.OpenSubKey(keyName)))
        {
            displayName = subkey.GetValue("DisplayName") as string;
            if (displayName != null && displayName.Contains(c_name))
            {
                return true;
            }
        }
        key.Close();
    }

    registryKey = @"SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall";
    key = Registry.LocalMachine.OpenSubKey(registryKey);
    if (key != null)
    {
        foreach (RegistryKey subkey in key.GetSubKeyNames().Select(keyName => key.OpenSubKey(keyName)))
        {
            displayName = subkey.GetValue("DisplayName") as string;
            if (displayName != null && displayName.Contains(c_name))
            {
                return true;
            }
        }
        key.Close();
    }
    return false;
}

和我简单地使用叫它

if(checkInstalled("Application Name"))

这篇关于检查应用程序安装在注册表中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！