[Iska]

Код:

@echo off
setlocal enableextensions enabledelayedexpansion

set sExeFile=%~dp0123.exe

if exist "%sExeFile%" (
	set /p sParams=Enter parameters for execute [%sExeFile%]:
	start "" "%sExeFile%" !sParams!
) else (
	echo Can't find executive file [%sExeFile%].
	exit /b 1
)

endlocal
exit /b 0