Hello Oliver!
Thank you very much for the encouragement.
The reason for the Light version not to play audio is that audio and video playback needs to be performed on 2 instances of the Pd so as not to generate audio clicks as it does in the full version. At the time of development, the object [pd~], used to manage the two instances and their communication, presented a serious problem in Windows, because it was not possible to run a patch located in a path with spaces in the name, and this is standard in Windows (ex: C:/Program Files/). If I am not mistaken, in version 0.48.1 of Pd this issue of [pd~] has been solved, but I have not tested it yet. The other point was mentioned by you: Gem's [pix_share] object does not work on Windows, and it is fundamental in the current design of [ARRAST_VJ] with respect to the use of the camera, which has its image shared between the two instances through of [pix_share]. The choice made under these conditions was to create a version (Light) of [ARRAST_VJ] that runs using only 1 instance of Pd, consequently without audio and without the preview window. If [pd~] is indeed working equally on all systems, it will be a further step towards a single version for [ARRAST_VJ], which will also allow audio in WIndows.
As soon as I have time, I'll run new tests on Windows. I'm excited about your account of having managed to run the full version on Windows. By the way, what version of Windows and Pd are you using?
Bruno