Windows CMD.exe customization

CmdInit.cmd

@echo off

rem Place this file wherever you want, then create a new `AutoRun` string in
rem `Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Command Processor` that points to its location

rem This will print the username in magenta
set userprompt=$E[35m%username%$E[0m

rem This will print the current directory in green
set pathprompt=$E[32m$p$E[0m

rem This will print a linefeed
set linefeed=$_

rem Determine if the current prompt has admin to print `$` or `>`
fltmc >nul 2>&1 && (
  set promptchar=$E[36m$$$E[0m$s
) || (
  set promptchar=$E[36m$g$E[0m$s
)

rem Set new prompt
PROMPT %userprompt% in %pathprompt%%linefeed%%promptchar%