Originally Posted by: marnix 
Hi Gino,
1. Does installing this "VI/VE Software 5.4 (OSX 10.6.8) build 16488" automatically overwrite and update my existing VI/VE?
==> Yes.
2. would installing this update in any way affect my existing "100 SpecialEdition" folder on my external hard drive or any other files in my internal drive for that matter?
==> No, the software installer will only update everything related to the Vienna Instruments and Vienna Ensemble applications, but not the sample content.
Best, Marnix
Hi, Marnix
Apologies for opening up this thread once more.
I was able to install the software version you recommended and it did reveal the newer Vienna Instruments GUI/interface in VE (non-pro).
I can open Vienna Instruments StandAlone app, and when I open Vienna Ensemble in Pro Tools 10, I am able to load Vienna Instruments as well as see, load, and play its patches.
However, my Vienna Instrument plug-in has disappeared from my plug-ins list in Pro Tools. I checked the plug-ins folder and saw that the RTAS version (.dpm file) has disappeared. (The Vienna Ensemble .dpm is still intact as well as the Vienna Ensemble .component, .vst, and .vst3 files.)
I can open Vienna Instruments StandAlone app, and when I open Vienna Ensemble in Pro Tools 10, I am able to load Vienna Instruments in there as well as see, load, and play its library patches.
So, as a trial workaround, I tried to wrap the Vienna Instrument VST via FXpansion's VST-to-RTAS app and succeeded in doing so. I am now able to see it in the Pro Tools plug-in list and am able to load it. The GUI does load in Pro Tools; however, nothing is clickable in the GUI and so it is, for now, unusable.
I thought maybe I'd just uninstall this newer VI/VE Software 5.4 (OSX 10.6.8) build 16488 and reinstall the older version I had, but the problem is that the older installers don't seem to be in the MyVSL downloads archive.
Could I possibly ask for your help once more in resolving this issuse that had just come up? 
Thank you very much - GIno