我正在使用来自WIX Toolset的 Windows Installer API 的 C# 包装器。我使用ProductInstallation该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
此包装器在内部使用MsiGetProductInfo函数。不幸的是，此函数不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？
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，但是代码以不同的格式存储。红圈为格式化后的升级码，蓝圈为在查看时格式化的产品码regedit.exe。
连字符被去掉，Guid然后进行一系列的字符串反转。前 8 个字符被反转，然后是接下来的 4 个，然后是后面的 4 个，然后字符串的其余部分以 2 个字符为一组进行反转。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（请参阅此处 Jon Skeet 的文章），但在这种情况下，Guid我们可以确信字符串将被正确反转.
下面是我用来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();
}
}
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);
}
}
InstallPackage 类有一个名为 LocalPackage 的属性。您可以使用它来查询缓存在 C:\Windows\Installer 中的 MSI 数据库，并获取您可能想知道的任何信息。
只是发表评论，以防将来对任何人都派上用场！
如果您只有 GUID 或代码可用，可以使用以下站点在两者之间进行转换：
希望这可以节省一些未来的头痛！
这是一种以注册表格式格式化 GUID 的更简单的方法（基本上只是原始字节表示）
首先是获取原始字节：
var guidBytes = Guid.Parse(productCode).ToByteArray();
然后只需翻转 BitConverter.ToString() 结果的字节顺序
var convertedString = String.Concat(BitConverter.ToString(guidBytes).Split('-').SelectMany(s => s.Reverse()));
这是您的帮助程序，其修改方式也适用于 .Net3.5 32 位应用程序。它们需要特殊处理，因为 .net 3.5 不知道注册表被分为 32 位和 64 位条目。我的解决方案仅To64BitPath用于浏览其中的 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-或相反亦然/
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;
}
}