Need to reinstall, but keep the data files.

Sorry if this has been asked, but after searching through the FAQs, and other topics, I can’t find what files/ folders to save to put back in after reinstalling WD.
Being the drunken program installer I was the other night, I inadvertently installed a game into the WD folder. Don’t ask how, as I had a case of Fosters, and a half liter of Capt. Morgan’s in me. #-o
Since I don’t know which files to delete from the folder, I would like to save my data files, config files, etc., then delete the WD Folder, and put in a fresh copy.
Does anyone know which ones I can save? Or, am I SOL and have to start all over again??

save the wdisplay.ini settings file
and the datafiles and webfiles and logfiles folders