I managed to get to that file on the FCP7 install disc.
here’s what to do:
Load up your Final Cut Studio Install disk,
or if you’ve made a disk image (good idea) access that.
Inside that, notice that the “Instal Final Cut Studio” package is actually an Alias,
so right-click on that and “Show Original”
You’ll be taken to a folder called “Installer” inside of which is another folder called “Packages”
Inside the Packages folder locate the VideoOutSupport.pkg,
right-click on it, and “Show Package Contents”
Inside the Contents folder, locate the Archive.paz.gz file.
Drag it to the desktop, and double click on it to un-zip it.
This will create a folder called “Library”
Open it, go to the QuickTime folder inside it,
and there you will find the file “DesktopVideoout.component”
Put this file in Macintosh HD > Library >QuickTime,
replacing the similarly named file there.
Digital Cinema Desktop Preview should now work.
cheers,
nick