We have a music store and we use Windows Media DRM to delivery and
license music. We have a lot of tracks packaged (protected), nowadays
we need to put some tracks on the original state, unprotected, to be
able to protect it again or protect using another method.

Hello again,
I wrote an application that takes unprotected stream from an encoder,
applies DRM protection and writes to a NetworkSink. The problem lies between
my tool and the LicenseServer, namely LicenseServer fails when verifying