I wouldn't let Quicktime near my PC except iTunes requires it, and I need iTunes to sync iPhones.
Once I install it, Quicktime hijacks IE9 and Firefox, attempting to play certain media files in a browser window when I really want them to open up in Windows Media Player instead.
I disabled everthying I could through Quicktime's settings and MIME file type menus, restored all the file associations I could through the Windows 7 control panel and checked the browsers for any Add-Ons to be disabled, yet Quicktime still opens up certain .mp3 and .asp links (along with anything else I haven't discovered yet).
I even tried using the standalone Quicktime installer hoping it would offer some better options to uncheck during the install process but that was no better. Apple seems to have decided its mandatory Quicktime player is the most important media player on my PC but I wholeheartedly disagree. Does anyone know how to get this thing's talons out of my system/browser?