Media Player Classic and ZoomPlayer are capable of playing QuickTime files by using the QuickTime framework that gets installed by QT Lite. Other players will require DirectShow filters to be able to play QuickTime files.
If you want to play QuickTime files in Windows Media Player or another DirectShow based player, then it is recommended to install the K-Lite Codec Pack. That contains all the DirectShow filters that are required to play QuickTime files.
Freeware
OS Windows 2003/XP/Vista