The 64-bit version of Live can use any DirectShow compatible decoder/demuxer installed on the system, but on a fresh Windows installation, only a limited number of video codecs is installed by default.
While launching Live the error message "Company Support Dir not found" is shown
Find out about the system requirements of Live 9.
The value shown on Live's CPU meter (in the upper right corner of the application window) doesn't show the same value than the Activity Monitor (Mac) or the Task Manager (Windows)
There's an error message while installing Live on Windows. Microsoft's Answers provides a fix.
The 64-bit version of Live 8 will not support Max for Live and The Bridge.
You can use the 64-bit version of Live if you are running a 64-bit version of Windows Vista, Windows 7 or Windows 8, or Mac OS 10.5 or higher on an Intel-based Mac.
Information about Live's compatibility with Windows 8.
Live 8.3.1 will be compatible with Mountain Lion.