terse

@echo off
set ph=e:\b\&set ext=dbf
set FileSize=123456789
for /f "tokens=*" %%i in ("%ph%") do set d=%%~di&set "p=%%~pi"
wmic datafile where "drive='%d%' and path='%p:\=\\%' and extension='%ext%' and FileSize>='%FileSize%'" get FileName
pauseCOPY