Question

我正在使用WIX Toolset中的Windows Installer API的C＃包装器。我使用ProductInstallation类来获取有关已安装产品的信息，例如产品代码和产品名称。

例如

产品名称 - “我的测试应用程序”
产品代码 - {F46BA620-C027-4E68-9069-5D5D4E1FF30A}
产品版本 - 1.4.0

这个包装器在内部使用MsiGetProductInfo函数。不幸的是，此功能不会返回产品的升级代码。

如何使用C＃检索已安装应用程序的升级代码？

Answer 1

我发现升级代码存储在以下注册表位置。

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes

注册表项名称是升级代码，注册表项值名称是产品代码。我可以轻松提取这些值，但代码以不同的格式存储。红色圆圈显示格式化的升级代码，蓝色圆圈在regedit.exe中查看时显示格式化的产品代码。

将连字符从Guid中删除，然后进行一系列字符串反转。前8个字符相反，然后是接下来的4个字符，然后是下面的4个字符，然后字符串的其余部分以2个字符的形式反转。通常在反转字符串时，我们需要注意确保正确处理控制和特殊字符（see Jon Skeet's aricle here）但是在这种情况下，处理Guid字符串我们可以确信字符串将被正确反转。

以下是我用于从注册表中提取已知产品代码的升级代码的完整代码。

internal static class RegistryHelper
{
    private const string UpgradeCodeRegistryKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes";

    private static readonly int[] GuidRegistryFormatPattern = new[] { 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2 };

    public static Guid? GetUpgradeCode(Guid productCode)
    {
        // Convert the product code to the format found in the registry
        var productCodeSearchString = ConvertToRegistryFormat(productCode);

        // Open the upgrade code registry key
        var localMachine = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
        var upgradeCodeRegistryRoot = localMachine.OpenSubKey(UpgradeCodeRegistryKey);

        if (upgradeCodeRegistryRoot == null)
            return null;

        // Iterate over each sub-key
        foreach (var subKeyName in upgradeCodeRegistryRoot.GetSubKeyNames())
        {
            var subkey = upgradeCodeRegistryRoot.OpenSubKey(subKeyName);

            if (subkey == null)
                continue;

            // Check for a value containing the product code
            if (subkey.GetValueNames().Any(s => s.IndexOf(productCodeSearchString, StringComparison.OrdinalIgnoreCase) >= 0))
            {
                // Extract the name of the subkey from the qualified name
                var formattedUpgradeCode = subkey.Name.Split('\\').LastOrDefault();

                // Convert it back to a Guid
                return ConvertFromRegistryFormat(formattedUpgradeCode);
            }
        }

        return null;
    }

    private static string ConvertToRegistryFormat(Guid productCode)
    {
        return Reverse(productCode, GuidRegistryFormatPattern);
    }

    private static Guid ConvertFromRegistryFormat(string upgradeCode)
    {
        if (upgradeCode == null || upgradeCode.Length != 32)
            throw new FormatException("Product code was in an invalid format");

        upgradeCode = Reverse(upgradeCode, GuidRegistryFormatPattern);

        return Guid.Parse(upgradeCode);
    }

    private static string Reverse(object value, params int[] pattern)
    {
        // Strip the hyphens
        var inputString = value.ToString().Replace("-", "");

        var returnString = new StringBuilder();

        var index = 0;

        // Iterate over the reversal pattern
        foreach (var length in pattern)
        {
            // Reverse the sub-string and append it
            returnString.Append(inputString.Substring(index, length).Reverse().ToArray());

            // Increment our posistion in the string
            index += length;
        }

        return returnString.ToString();
    }
}

Answer 2

InstallPackage类有一个名为LocalPackage的属性。您可以使用它来查询在C：\ Windows \ Installer中缓存的MSI数据库，并获取您可能想要了解的任何信息。

Answer 3

只需评论一下，以防将来对任何人都有用！

在只有GUID或代码可用的情况下，可以使用以下站点在两者之间进行转换：

https://daysoff.io/flipguid

希望这可以节省将来的麻烦！

Answer 4

这是从UpgradeCode获取ProductCode的相反方法。可能对某人有用。

using Microsoft.Win32;
using System;
using System.IO;
using System.Linq;
using System.Text;

internal static class RegistryHelper
{
    private const string UpgradeCodeRegistryKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes";

    private static readonly int[] GuidRegistryFormatPattern = new[] { 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2 };


    public static Guid? GetProductCode(Guid upgradeCode)
    {
        // Convert the product code to the format found in the registry
        var productCodeSearchString = ConvertToRegistryFormat(upgradeCode);

        // Open the upgrade code registry key
        var upgradeCodeRegistryRoot = GetRegistryKey(Path.Combine(UpgradeCodeRegistryKey, productCodeSearchString));

        if (upgradeCodeRegistryRoot == null)
            return null;

        var uninstallCode = upgradeCodeRegistryRoot.GetValueNames().FirstOrDefault();
        if (string.IsNullOrEmpty(uninstallCode))
        {
            return null;
        }

        // Convert it back to a Guid
        return ConvertFromRegistryFormat(uninstallCode);
    }





    private static string ConvertToRegistryFormat(Guid code)
    {
        return Reverse(code, GuidRegistryFormatPattern);
    }

    private static Guid ConvertFromRegistryFormat(string code)
    {
        if (code == null || code.Length != 32)
            throw new FormatException("Product code was in an invalid format");

        code = Reverse(code, GuidRegistryFormatPattern);

        return Guid.Parse(code);
    }

    private static string Reverse(object value, params int[] pattern)
    {
        // Strip the hyphens
        var inputString = value.ToString().Replace("-", "");

        var returnString = new StringBuilder();

        var index = 0;

        // Iterate over the reversal pattern
        foreach (var length in pattern)
        {
            // Reverse the sub-string and append it
            returnString.Append(inputString.Substring(index, length).Reverse().ToArray());

            // Increment our posistion in the string
            index += length;
        }

        return returnString.ToString();
    }

    static RegistryKey GetRegistryKey(string registryPath)
    {
        var hklm64 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
        var registryKey64 = hklm64.OpenSubKey(registryPath);
        if (((bool?)registryKey64?.GetValueNames()?.Any()).GetValueOrDefault())
        {
            return registryKey64;
        }

        var hklm32 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);
        return hklm32.OpenSubKey(registryPath);
    }
}

Answer 5

这里有一种更简单的方法来获取注册表格式的 GUID 格式（基本上只是一个原始字节表示）

首先是获取原始字节：

#For simplicity reasons just three files - you can use a generator or read the filenames from the directory
files = ['file1.json', 'file2.json', 'file3.json']

for file in files:
   f = open(file)
   #Do your stuff with the file
   f.close()

然后只需翻转 BitConverter.ToString() 结果的字节序

var guidBytes = Guid.Parse(productCode).ToByteArray();

Answer 6

这是你的帮助程序修改，它也适用于.Net3.5 32位应用程序。他们需要特殊的处理，因为.net 3.5没有意识到注册表在32位和64位之间被分割。我的解决方案是仅使用To64BitPath来浏览64位部分。还有一个很棒的教程，使用DllImports：https://www.rhyous.com/2011/01/24/how-read-the-64-bit-registry-from-a-32-bit-application-or-vice-versa/

class RegistryHelper
{
    private const string UpgradeCodeRegistryKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes";
    private const string UninstallRegistryKey = @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall";

    private static readonly int[] GuidRegistryFormatPattern = new[] { 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2 };



    public static string To64BitPath(string path)
    { 
        return path.Replace("SOFTWARE\\Microsoft", "SOFTWARE\\WOW6432Node\\Microsoft");
    }

    private static RegistryKey GetLocalMachineRegistryKey(string path)
    {
        return RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, string.Empty).OpenSubKey(path);
    }

    public static IEnumerable<Guid> GetUpgradeCodes()
    {
        var list = new List<Guid>();

        var key = GetRegistryKey(UpgradeCodeRegistryKey);
        if (key != null)
        {
            list.AddRange(key.GetSubKeyNames().Select(ConvertFromRegistryFormat));
        }

        return list;
    }

    public static Guid? GetProductCode(Guid upgradeCode)
    {
        // Convert the product upgradeCode to the format found in the registry
        var productCodeSearchString = ConvertToRegistryFormat(upgradeCode);

        // Open the upgradeCode upgradeCode registry key
        var upgradeCodeRegistryRoot = GetRegistryKey(Path.Combine(UpgradeCodeRegistryKey, productCodeSearchString));

        if (upgradeCodeRegistryRoot == null)
            return null;

        var uninstallCode = upgradeCodeRegistryRoot.GetValueNames().FirstOrDefault();
        if (string.IsNullOrEmpty(uninstallCode))
        {
            return null;
        }

        // Convert it back to a Guid
        return ConvertFromRegistryFormat(uninstallCode);
    }

    public static string ConvertToRegistryFormat(Guid code)
    {
        return Reverse(code, GuidRegistryFormatPattern);
    }

    private static Guid ConvertFromRegistryFormat(string code)
    {
        if (code == null || code.Length != 32)
            throw new FormatException("Product upgradeCode was in an invalid format");

        code = Reverse(code, GuidRegistryFormatPattern);

        return new Guid(code);
    }

    private static string Reverse(object value, params int[] pattern)
    {
        // Strip the hyphens
        var inputString = value.ToString().Replace("-", "");

        var returnString = new StringBuilder();

        var index = 0;

        // Iterate over the reversal pattern
        foreach (var length in pattern)
        {
            // Reverse the sub-string and append it
            returnString.Append(inputString.Substring(index, length).Reverse().ToArray());

            // Increment our posistion in the string
            index += length;
        }

        return returnString.ToString();
    }

    static RegistryKey GetRegistryKey(string registryPath)
    {
        var registryKey64 = GetLocalMachineRegistryKey(To64BitPath(registryPath));
        if (((bool?)registryKey64?.GetValueNames()?.Any()).GetValueOrDefault())
        {
            return registryKey64;
        }

        return GetLocalMachineRegistryKey(registryPath);
    }


    public static Guid? GetUpgradeCode(Guid productCode)
    {
        var productCodeSearchString = ConvertToRegistryFormat(productCode);
        var upgradeCodeRegistryRoot = GetRegistryKey(UpgradeCodeRegistryKey);

        if (upgradeCodeRegistryRoot == null)
        {
            return null;
        }

        // Iterate over each sub-key
        foreach (var subKeyName in upgradeCodeRegistryRoot.GetSubKeyNames())
        {
            var subkey = upgradeCodeRegistryRoot.OpenSubKey(subKeyName);

            if (subkey == null)
                continue;

            // Check for a value containing the product upgradeCode
            if (subkey.GetValueNames().Any(s => s.IndexOf(productCodeSearchString, StringComparison.OrdinalIgnoreCase) >= 0))
            {
                // Extract the name of the subkey from the qualified name
                var formattedUpgradeCode = subkey.Name.Split('\\').LastOrDefault();

                // Convert it back to a Guid
                return ConvertFromRegistryFormat(formattedUpgradeCode);
            }
        }

        return null;
    }
}

如何在C＃中找到已安装应用程序的升级代码？

6 个答案: