Run mstsc.exe with specified username and password

Question

I realize that in Windows 7, it is not possible to save different credentials for the same host, but I need some workaround.

Can I provide the username and password

Answer 1

The accepted answer solves the problem, but has the side effect of leaving the credentials in the users credential store. I wound up creating an IDisposable so I can use the credentials in a using statement.

using (new RDPCredentials(Host, UserPrincipalName, Password))
{
    /*Do the RDP work here*/
}

---

internal class RDPCredentials : IDisposable
{
    private string Host { get; }

    public RDPCredentials(string Host, string UserName, string Password)
    {
        var cmdkey = new Process
        {
            StartInfo =
            {
                FileName = Environment.ExpandEnvironmentVariables(@"%SystemRoot%\system32\cmdkey.exe"),
                Arguments = $@"/list",
                WindowStyle = ProcessWindowStyle.Hidden,
                UseShellExecute = false,
                RedirectStandardOutput = true
            }
        };
        cmdkey.Start();
        cmdkey.WaitForExit();
        if (!cmdkey.StandardOutput.ReadToEnd().Contains($@"TERMSRV/{Host}"))
        {
            this.Host = Host;
            cmdkey = new Process
            {
                StartInfo =
            {
                FileName = Environment.ExpandEnvironmentVariables(@"%SystemRoot%\system32\cmdkey.exe"),
                Arguments = $@"/generic:TERMSRV/{Host} /user:{UserName} /pass:{Password}",
                WindowStyle = ProcessWindowStyle.Hidden
            }
            };
            cmdkey.Start();
        }
    }

    public void Dispose()
    {
        if (Host != null)
        {
            var cmdkey = new Process
            {
                StartInfo =
            {
                FileName = Environment.ExpandEnvironmentVariables(@"%SystemRoot%\system32\cmdkey.exe"),
                Arguments = $@"/delete:TERMSRV/{Host}",
                WindowStyle = ProcessWindowStyle.Hidden
            }
            };
            cmdkey.Start();
        }
    }
}