@echo off

set crc=C:\tasklist.crc
if .%1 == .set goto set

for /f "tokens=1 skip=3" %%a in ('tasklist.exe') do find "%%a" %crc% > nul || echo %%a bad
goto out

:set
for /f %%a in ('tasklist.exe') do echo %%a >> %CRC%

:out