@echo off
start /B wmenu.exe -elements "notepad;explorer;paint;" | more > %temp%/apps.txt

for /f "tokens=*" %%s in (%temp%\apps.txt) do (
  IF "%%s"=="notepad" (
	start notepad
  ) ELSE IF "%%s"=="explorer" (
	start %%s
  ) ELSE IF "%%s"=="paint" (
	start mspaint
  ) ELSE (
	REM default case...
  )
)

del "%temp%\apps.txt"