EDIT: I HAVE FOUND OUT HOW TO GET THE RTP TO WORK THANKS TO THIS TUTORIAL. Original comment exists simply for history's sake.
Help!
I'm having difficulty installing the 2000 RTP and 2003 RTP.
Technical Notes: I use a Mac, I use Winebottler for Windows games (worked perfectly fine for Yume Nikki itself), and I have The Unarchiver for unzipping things without the horrible disease known as mojibake.
Anyway, as for the error itself...
I do the usual set-up for using executables, but the RTP.exe just gives me an "Invalid name" error, and then another error which is just a bunch of question marks.
I've looked around for how to install the RTP on a Mac, but all I could find were things for Linux users. This is disappointing, since this is the only thing holding me back from actually getting to play any Yume Nikki fangames.