Question

In my .net web application, I need to launch another program as a new process – under a different user account (one with higher priviledges). My code runs without error, but I never get any output (I’ve tried Redirecting the output), and the program doesn’t seem to execute at all. Its not an error with the User auth details, I’ve tried a bogus username and sure enough it throws a valid exception in that case. Nothing gets added to the event log.

 SecureString passwordString = new SecureString();
 foreach (char c in "MyPassword")
 {
     passwordString.AppendChar(c);
 }

var process = new System.Diagnostics.Process
{
    StartInfo =
    {
        UserName = "myuser", Password = passwordString, Domain = "MyDomain",
        WorkingDirectory = HttpContext.Request.MapPath("~/bin"),
        UseShellExecute = false,
        FileName = HttpContext.Request.MapPath("~/bin") + "\\ServerCertificateImporter.exe",
        Arguments = instanceLocationId.ToString(),
        CreateNoWindow = true,
        RedirectStandardInput = false,
        RedirectStandardOutput = false,
        RedirectStandardError = false
    }
};

process.Start();
process.WaitForExit();
process.Close();

Answer 1

As Yahia pointed out, this was caused by the fact that I was trying to call a program with a different user account – and windows didn’t want me to do that.