Attention OS X: Vienna Instruments (version 4) runs on Intel Core2Duo/Xeon with Mac OS X 10.5.7 or higher. Vienna Instruments (4) also works on PPC Macs, although not actively supported.
An earlier version of Vienna Instruments (version 2) which is compatible with OS X 10.4 and PPC Macs is available in the Archive below.
OS X: Please note that Vienna Instruments 2.1 or higher is not compatible with versions older than 2.0 build 4017.
If you are upgrading from an older version, please open and save your songs with Vienna Instruments 2.0 build 4017 first, available in the Archive below.
Then upgrade to the latest Vienna Instruments Software.