--newinstance
  Opens the file in a new instance rather than an existing one.

--noipc
  Disables interprocess communication between different instances of dred. When this is set, the
  instance will not set itself up as a server and will not try to communicate with any other instance.
  
--portable, --no-portable
  Enables or disables portable mode, respectively. When enabled, configs, logs, etc. are all loaded
  and saved relative to the executable. Non-portable mode uses the users directory for configs, etc.