I don't think very many people still use QuickTime anymore, but there are still on a lot of machines running Windows with QuickTime installed. Apple is not going to issue any more security fixes for QuickTime even though there are two known serious Windows vulnerabilities:
http://www.breitbart.com/tech/2016/0...cking-dangers/
https://www.us-cert.gov/ncas/alerts/TA16-105A
http://blog.trendmicro.com/urgent-ca...windows-today/
Just a heads up for those who might be affected...
<O>