Couldn't find anything, maybe it's obvious, just to clarify - to setup kix
copy kix dlls and kix.exe and wkix32.exe to sysvol\scripts
create a logon.bat file
that file will have

\\sysvol\kix.32 sysvol\etc\kix.kix

what if we want to have multiple ous with multiple scripts, how does that work? can we create a script per ou? i guess as long as kix is in the script path it should run, but just curious to make sure, the manual should have a section on gpo's.