„Microsoft Windows users who still have Apple Quicktime installed should ditch
the program now that Apple has stopped shipping security updates for the
platform, warns the Department of Homeland Security’s U.S. Computer Emergency
Readiness Team (US-CERT). The advice came just as researchers are reporting two
new critical security holes in Quicktime that likely won’t be patched.
http://krebsonsecurity.com/2016/04/us-cert-to-windows-users-dump-apple-quicktime/

VLC would be an alternative

http://www.howtogeek.com/250926/quicktime-for-windows-is-dead-and-you-should-uninstall-it-to-stay-secure/?PageSpeed=noscript

http://indianexpress.com/article/technology/tech-news-technology/apple-will-stop-security-support-for-quicktime-for-windows-heres-why/

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