eXtended Start command for Windows
(ShellExecute for the command line)
            [CLD rev. 2024-05-28]
Usage (arguments in order):
XSTART [#<verb>] [/D=["]d:\working_dir["]] [/MAX|/MIN|/HID] ["]<command>["] [["]<argument(s)>["]]
#<verb>: Any action available for ["]<command>["]; commonly available verbs are:
         open (default), edit, explore, find, print, runas [Administrator]
         For example:
           XSTART #explore C:\Windows\System32
           XSTART #print [/HID] [d:\path\]myfile.pdf
           (see option /HID, below)
           XSTART #find d:\path\ (open the Windows Search dialog)
         For further information, see, e.g.:
           <https://learn.microsoft.com/en-us/windows/win32/shell/launch>
/D=["]d:\working_dir["]:
         Working directory
/MAX|/MIN|/HID (or: +|-|_):
         Start Maximized|Minimized|Hidden
         Note: /HID|_ usefully hides the cmd.exe window that appears briefly when
               opening a file in its associated application; otherwise, hides the
               window opened by ["]<command>["]
["]<command>["] [["]<argument(s)>["]]:
         Command, executable name, file name, URL, etc., and argument(s), if any
         Enclose commands with spaces in "double quotes"
         For built-in commands, use "cmd.exe" as the command and "/k <command>..."
           as the argument; for example:
           XSTART cmd.exe "/k dir|more &pause &exit"
XSTART <[d:\path\]file> opens <file> in its associated Windows app
XSTART with no argument opens a cmd.exe window
XSTART #runas opens a cmd.exe window with Administrator privileges
XSTART /?|-?|/h|-h|--help displays this help