You might want to look at
this man
it lets you completely customize your PC, to no end
and the best part is it has a patcher that cant be stopped
if anything you can just make a custom ISO that is patched
i intergrated all my custom skins and themes in before install
takes a little while to go over all the options but if you truly like custom... this is the way to go
EDIT:
Got you covered manHow To Replace Uxtheme.dll
1. First of all delete uxtheme.dll file from C:\Windows\system32\dllcache and C:\Windows\ServicePackFiles\i386
2. Navigate to C:\Windows\system32 and backup the original uxtheme.dll by renaming it or by copying it on your desktop.
3. Paste the patched or hacked uxtheme.dll (which you downloaded from here) to C:\Windows\system32.
* You should get a pop-up windows titled "Windows File Protection". Click on OK.
* You should then see a second Windows File Protection pop-up window asking you to insert your SP2 CD. Click on Cancel.
* You'll then get a third pop-up window asking you if you are sure you want to keep the unrecognized file. Click Yes.
* If you get another pop-us then ignore it and reboot your PC.
