C#

public void StartRemoteProcess(string address, string processName, string userName, string password)
{
  object[] processes = { processName };
  ConnectionOptions connection = new ConnectionOptions{ Username = userName, Password = password };
  ManagementScope scope = new ManagementScope(string.Format(@"\\{0}\root\cimv2", address), connection);
  using (ManagementClass mc = new ManagementClass(scope, new ManagementPath("Win32_Process"),
    new ObjectGetOptions()))
  {
    mc.InvokeMethod("Create", processes);
  }
}

FileIOPermission writePermission = new FileIOPermission(FileIOPermissionAccess.Write, filename);
if(!SecurityManager.IsGranted(writePermission))
{
//Do stuff
}