Windows Media Player. Version 3, better known as DRM v10, was released in 2004. Earlier versions of the system have cracks available, meaning content restricted with these versions can have the protections stripped. Version 10 was cracked in early 2005, but a software update was shortly pushed which sealed the relevant hole. Generally, these sorts of cracks have all worked in the same way to a certain extent. Rather than break the encryption itself, which is infeasible, they hook or interfere with the "black box" component as it runs to dump out the content keys or the unencrypted content from memory. Interoperability Content delivered with WMDRM encryption is not universally accessible. Microsoft Windows supports playback of content protected with WMDRM encryption, and the format has become popular with consumer electronics manufacturers, many of whom have licensed the WMDRM decode component for devices like television sets, set-top boxes and Blu-ray players. The open network protocol for digital rights management, [MS-DRM] from the MCPP collection, stipulates that software developers have a right to implement the protocol outside the Microsoft's development tools and environment. Removal Tools have been created to strip files of Windows Media DRM, enabling them to be played on non-Janus platforms. These tools typically were developed with one specific Individualized Blackbox Component (IBX) version in mind and rarely work on a version they were not explicitly designed for. Microsoft in addition to upgrading the IBX whenever it was cracked, also pursued legal action against those who developed and hosted these tools, driving the development and distribution even further underground and fragmenting it. These tools can be split into three categories: decrypter, key-finder, and all-in-one (finds the keys and then decrypts). Microsoft has been more successful in squashing the development and distribution of the tools capable of key finding than those that decrypt encoding, as is apparent by the continual existence of the SourceForge project FreeMe2. FairUse4WM It was claimed that one particular tool, FairUse4WM (released on August 19, 2006) written by Viodentia, had the ability to strip DRM from files protected with WMDRM. This is an all-in-one tool. Microsoft responded in several ways. First, on August 28, 2006 Microsoft released a new version of the IBX to prevent this particular tool from working. Microsoft also informed partners that they were working to further resolve this issue, given that allegedly the fix was also circumvented within days. Microsoft also issued takedown