Originally Posted by colino

I've just spotted I have the problem which FairUse4WM should resolve but I'm also supporting a version of mediaplayer beyond the version it currently caters for. Is it possible that whoever created FairUse4WM might eventually provide a later version addressing V.11 Final rather than my trying the Monkey Boy fix? If I could revert back to an earlier version of media player would this resolve the problem ? Thanks in advance

Originally Posted by Danj

It's the simple fact that because of all the many different configurations of Windows PCs out there, the
one-size-fits-all approach does not always work.

Since you have all the Windows Media Player updates installed, you would need to check if your Music/Video service will allow you to redownload songs, because the "roll-back" procedure that you would need to perform will destroy any existing DRM licenses you have (not just music but video too).

The reason why this roll-back procedure is needed is that the current version of FairUse4WM (1.3fix) does not support the latest version of Microsoft's "Individualized Black Box DLL" (referred to in this thread as "IBX" for short). This file is the critical system file which handles the encryption and decryption processes involved in Microsoft's DRM. A few forum posters at doom9 have discovered a method whereby they can obtain an older IBX by replacing certain Windows Media Player files with older versions. Unfortunately this seems to be a hit-and-miss process as not everyone has been able to get it to work. Also, because this file is individualized, you cannot simply download a copy of it from someone else, you have to obtain it via the proper individualization process which takes place on Microsoft's web site, otherwise it simply won't work at all.

I personally do not have any experience with the roll-back process since (so far at least) I haven't yet been forced to upgrade to Windows Media Player 11, and consequently I still have IBX version 11.0.5497.6285. If you wish to determine your own IBX version, you can follow these steps:

1. Go to Start, Control Panel, Folder Options, View tab.
2. Check "Show hidden files and folders".
3. Uncheck "Hide extensions for known file types" and "Hide protected operating system files".
4. Load Windows Explorer.
5. Go to C:\Documents and Settings\All Users\DRM.
6. Right click Indivbox.key (may also be called Indiv001.key or Indiv002.key or something - pick the one with the highest number if so) and choose Properties.
7. Click the Version tab.

Your IBX version number will be displayed at the top. If it is 11.0.6000.6324 or higher then you will need to perform the roll-back process and hope it works for you. If not, then either FairUse4WM 1.3fix or FairUse4WM 1.3 should work for decrypting your files.

FairUse4WM itself is pretty self-explanatory... it is presented in a wizard style format and supports both dragging and dropping of files and also passing filenames on the command line. The first time you use it you will need to recover your DRM keys, but after that, unless for some reason your IBX gets upgraded or you have to reindividualize, it will remember them and go straight to the file chooser dialog.