You can get rid of Quicktime, but you will have to use a substitute: Quicktime Alternative, available here: QuickTime Alternative
I got disgusted with Quicktime years ago when it started trying to take over everything it could in my PC--luckily others felt the same way and Quicktime Alternative was developed.
You have to use this technique to install Quicktime Alternative:
Uninstall Quicktime through control panel
Install Quicktime Alternative
Likewise, there is a Realtime Alternative for those of you sick of Realtime.