AndroidSmS aHelper = new AndroidSmS();
string renameMsg = aHelper.RenameFile();

public string RenameFile() {

        string renameBATPath = ConfigurationManager.AppSettings["RenameBATPath"].ToString();
        string o;
        string str = DateTime.Now.ToOADate().ToString();
        using (var p = new System.Diagnostics.Process())
        {
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.FileName = @renameBATPath;
            p.StartInfo.Arguments = DateTime.Now.ToShortDateString().ToString().Replace('/', '-')+".db";
            p.Start();
            o = p.StandardOutput.ReadToEnd();
            p.WaitForExit();
        }
        return o;

    }

p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.FileName = @renameBATPath;
p.StartInfo.Arguments = DateTime.Now.ToShortDateString().ToString().Replace('/', '-')+".db";
p.StartInfo.UserName = "administrator";
char[] password = { 'p', 'a', 's', 's', 'w', 'o', 'r', 'd' };
SecureString adminpassword = new SecureString();
foreach (char c in password)
{
    adminpassword.AppendChar(c);
}
p.StartInfo.Password = adminpassword;
p.Start();