如何在 C# 中以编程方式卸载软件

Question

如何在c#中以编程方式卸载软件？

Microsoft.Win32.RegistryKey Fregistry = Microsoft.Win32.Registry.LocalMachine.OpenSubKey("SOFTWARE")

            .OpenSubKey("Microsoft").OpenSubKey("Windows").OpenSubKey("CurrentVersion")
            .OpenSubKey("Installer").OpenSubKey("UserData")
            .OpenSubKey("S-1-5-18").OpenSubKey("Products");
            string[] Names = Fregistry.GetSubKeyNames();
            string uninstall = "";
            string ApplicationName = "Studio V5";
            for (int i = 0; i < Names.Length; i++)
            {
                Microsoft.Win32.RegistryKey FTemp = Fregistry.OpenSubKey(Names[i]).OpenSubKey("InstallProperties");
                **if (FTemp.GetValue("DisplayName").ToString() == ApplicationName)**
                {
                    object obj = FTemp.GetValue("UninstallString");
                    if (obj == null)
                        uninstall = "";
                    else
                        uninstall = obj.ToString();
                    i = Names.Length;
                }
            }

            System.Console.WriteLine(uninstall);
            System.Diagnostics.Process FProcess = new System.Diagnostics.Process();
            string temp = "/x{" + uninstall.Split("/".ToCharArray())[1].Split("I{".ToCharArray())[2];
            //replacing with /x with /i would cause another popup of the application uninstall
            FProcess.StartInfo.FileName = uninstall.Split("/".ToCharArray())[0];
            FProcess.StartInfo.Arguments = temp;
            FProcess.StartInfo.UseShellExecute = false;
            FProcess.Start();
            System.Console.Read();

我在 ** 行中遇到类似....NULL REFERENCE EXCEPTION 的错误。

Answer 1

这是一种非常讨厌的方法，我怀疑它在任何情况下都能保证工作。相反，您应该使用Windows Installer API，特别是MsiConfigureProduct 和/或MsiConfigureFeature 函数与INSTALLSTATE_ABSENT 以编程方式卸载任何东西。