added lxlstartup.cmd, for Windows 11's WSL2 with systemd enabled

lxlstartup.cmd

@@ -0,0 +1,21 @@
+@rem lxlstartup.cmd:
+@rem   for Windows 11's WSL2 with systemd enabled
+@rem   executed when a user logging in
+@rem   this file, or its shortcut, should be in the user's StartUp folder: 
+@rem   (%USERPROFILE%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup)
+
+@rem use smaller window
+@mode con:cols=66 lines=10
+@set PROMPT=#
+
+@rem start putty pageant
+@set PUTTYDIR=%USERPROFILE%\WinUtils\puttyall
+@set KEYDIR=%USERPROFILE%\WinUtils\puttyall\Keys
+@start /b %PUTTYDIR%\PAGEANT.EXE %KEYDIR%\mykey.ppk
+
+@rem trigger wsl using execmd of nircmd (https://www.nirsoft.net/utils/nircmd.html)
+@rem   "nircmd execmd" runs a cmd with hidden cmd window
+@rem   "wsl ~" starts WSL session and steys there to avoid WSL's automatic stop
+@set NIRCMD=%USERPROFILE%\WinUtils\nircmd\NirCmd.exe
+@start /b %NIRCMD% execmd wsl ~
+