使用c#安装Msi文件

Question

I am trying to insert msi file using asp.net application. when i run visual studio in administrators mode it is working fine but when i run it in normal mode it is not working. I had tried following code:

string installerFilePath;
installerFilePath = @"D:\ActivexPractice\test\test\NewFolder1\setup.msi";
System.Diagnostics.Process installerProcess = System.Diagnostics.Process.Start(installerFilePath, "/q");

can any body guide me on this how to install it without administrators right

Answer 1

You can use msiexec.exe to run installer. Here is sample code.

        Process installerProcess = new Process();
        ProcessStartInfo processInfo = new ProcessStartInfo();
        processInfo.Arguments = @"/i  D:\ActivexPractice\test\test\NewFolder1\setup.msi  /q";
        processInfo.FileName = "msiexec";
        installerProcess.StartInfo = processInfo;
        installerProcess.Start();
        installerProcess.WaitForExit();

Answer 2

If the MSI requires admin rights to install then it will ask for elevation in a UI install. Your /q is failing because a silent install is really silent and will not prompt for elevation. Note that limited users are not allowed to break security rules simply because they are doing an install.

So in that situation your launching process would need to be elevated, either by running as administrator or giving it a requiresAdministrator manifest so it asks for elevation.

When you fire off the install you need to make sure that your elevated state is used to fire off the install. The simplest way to guarantee this is to just call (p/invoke to...) MsiInstallProduct () directly from your code. The issue with Process.Start is that by default ProcessStartInfo.UseShellExecute is true and your elevated state (if you have one) will not be used to start the install. When the install is launched it needs to be a CreateProcess type of execution rather than a ShellExecute type so that your elevated credentials are used.

Answer 3

private void installMSI(string path) { string[] allFiles = Directory.GetFiles(path, "*.msi");

        foreach (string file in allFiles)
        {
            if(file.Contains("Artis"))
            {
                System.Diagnostics.Process installerProcess = 
                System.Diagnostics.Process.Start(file, "/q");
                while (installerProcess.HasExited == false)
                {
                    installerProcess.WaitForExit();
                }
                Console.WriteLine("Installation done for" + file);
            }
            
        }

    }