如何在 C# 中找到已安裝應用程序的升級代碼？

Question

我正在使用WIX 工具集中的 Windows Installer API 的 C# 包裝器。 我使用ProductInstallation類來獲取有關已安裝產品的信息，例如產品代碼和產品名稱。

例如

• 產品名稱 - “我的測試應用程序”
• 產品代碼 - {F46BA620-C027-4E68-9069-5D5D4E1FF30A}
• 產品版本 - 1.4.0

此包裝器在內部使用MsiGetProductInfo函數。 不幸的是，此函數不會返回產品的升級代碼。

如何使用 C# 檢索已安裝應用程序的升級代碼？

Answer 1

我發現升級代碼存儲在以下注冊表位置。

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

注冊表項名稱是升級代碼，注冊表項值名稱是產品代碼。 我可以輕松提取這些值，但是代碼以不同的格式存儲。 紅圈是格式化后的升級代碼，藍圈是在regedit.exe查看時格式化的產品代碼。

連字符從Guid中剝離，然后完成一系列字符串反轉。 前 8 個字符被反轉，然后是接下來的 4 個，然后是接下來的 4 個，然后字符串的其余部分以 2 個字符為一組反轉。 通常，在反轉字符串時，我們需要注意確保正確處理控制和特殊字符（ 請參閱此處的 Jon Skeet 的文章），但正如我們一樣，在這種情況下，處理Guid字符串我們可以確信該字符串將被反轉正確。

下面是我用來從注冊表中提取已知產品代碼的升級代碼的完整代碼。

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

這是從 UpgradeCode 獲取 ProductCode 的相反方法。 可能對某人有用。

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 3

InstallPackage 類有一個名為 LocalPackage 的屬性。 您可以使用它來查詢緩存在 C:\\Windows\\Installer 中的 MSI 數據庫，並獲取您可能想了解的任何信息。

Answer 4

只是評論以防萬一這在未來對任何人都派上用場！

如果您只有 GUID 或代碼可用，則可以使用以下站點在兩者之間進行轉換：

https://daysoff.io/flipguid

希望這可以節省一些未來的頭痛！

Answer 5

這是一種以注冊表格式（基本上只是原始字節表示）獲取 GUID 格式的更簡單的方法

首先是獲取原始字節：

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

然后只需翻轉 BitConverter.ToString() 結果的字節序

var convertedString = String.Concat(BitConverter.ToString(guidBytes).Split('-').SelectMany(s => s.Reverse()));

Answer 6

這是您的助手，它以這樣的方式修改，它也適用於 .Net3.5 32 位應用程序。 它們需要特殊處理，因為 .net 3.5 不知道注冊表被分成 32 位和 64 位條目。 我的解決方案僅使用To64BitPath來瀏覽其中的 64 位部分。 還有一個使用 DllImports 的很棒的教程： https : //www.rhyous.com/2011/01/24/how-read-the-64-bit-registry-from-a-32-bit-application-反之亦然/

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;
    }
}