Hello Andi: The 5 Soprano Choir files are in D:\91 Soprano-Choir. It is listed as such in Directory Manager. My other sound sets are in the same location (the D: drive is dedicated to Vienna Instruments). I fiddled with Directory Manager an even though I don't think I changed anything I now see DL Soprano Choir in the list of licensed sounds in Ensemble, and on the right side there's a folder F - Voices MATRIX - Files. Good news, a step in the right direction.
When I attempted to assign it to an instrument within Ensemble I got "File is invalid or corrupted". Perhaps this explains why it was not visible until now. I am going to redownload and reinstall it and we'll see what happens.
In the meantime, should it be visible within Sibelius in the Playback Devices/Program Name dropdown along with all my other Vienna sounds? It isn't presently so I do not know how to use it from within Sibelius. Is this normal, and if so how do I use the Soprano Choir in Sibelius?
Thanks again,
John