Windows 7: WMP RichPreviewHandler hacking.

Hi there ...

So i've finished my first skin for Windows 7, but ... I really would like to
customize the WMP RichPreviewHandler, cause it just looks crappy to me
and does not blend in nicely with my skin, which is sort of based on Adobe
looks, but not dark - so no transparency used, as to make it look sort of understated and easy on the eye .

Ok so now i'm busy hacking the file wmprph.exe and wmploc.dll.
The skin resides in the wmploc.dll called RICHPREVIEW.WSZ and another script
named 4004. So i managed to get the gray border around the Albumart by
changing some things in there (AtlAxWin ), but notice the colour around it (RPHInnerParent) ! That is inside wmprph.exe, (it is white by default, cause I think all AtlAxWin type windows uses COLOR_WINDOW as background unless it is used in a dialog.

So it would be easy to just specify a specific colour as COLOR_WINDOW inside the msstyles file but it would be a global thing then and Notepad would not look that nice with the rather darkish background inside the editing part .

Now the yellowish colour you see is a result of fooling around with wmprph.exe -
disassembling, spying etc. Now if one uses the Ms Spy++ app. it will show there are actually 2 windows in the ReadingPane namely - AtlAxWin and RPHInnerParent.
RPHInnerParent is the one that has to be changed to have a diff. background color,
and that is what i'm busy working on, but if one uses Spy++ it will show a diff.
colour every time another preview comes up ! (really confusing) .... .

What I need is some programming background info I guess, but what the hell I'm
trying my best (no all my hair is still intact ).

So any input will be appreciated !
Thanks.