sentences:  "viodentia" is the pseudonym of one or more individuals who wrote software that would enable users to remove the protection mechanism from their media, thus allowing it to be copied for legal use.Forum posts under the name "viodentia" stated in 2006 that the program was to enable exercise of fair-use rights only, and excluded import of cryptographic data needed for piracy usage.A lawsuit was later filed by Microsoft, on the basis that FairUse4WM contained proprietary computer code from Microsoft’s Windows and/or was a derivative work of Microsoft’s Windows Media Format SDK or other Microsoft DRM technologies.