I can't see RealMediaSplitter.ax in your listed files, but I suppose you're going to put it on the CD too
You can use Gspot / View / Installed Codecs / Video to determine the ???? for Real Media...I didn't have that one installed so I can't tell, but it should be there...at least QuickTime (alternative) was.
BTW: I think FilterGUID means that 238D0F23-5DC9-45A6-9BE2-666160C324DD thing...I've used windows regedit to find this code using the filters filename as query.