echo EXTRACT2.CMD will extract IFNDIS.SYS from the file given as argument.
echo Example: %0 f:\i12\tcp20c4.zip
if %# == 1 GOTO ok 
echo I need 1 parameter.
goto end
:ok
unzip -Cj %1 tcp20c4.exe && unzip -C tcp20c4.exe BASEOC1.ZIP && del tcp20c4.exe && unzip -j BASEOC1.ZIP BIN/ifndis.sys && del BASEOC1.ZIP 
:end