QuickTime 7.5.5 for Windows
This release is recommended for all QuickTime 7 users.
QuickTime 7.5.5 includes changes that increase reliability, improve application compatibility and enhance security.
QuickTime 7.5.5 for Windows SHA-1 Digest:
For explanation of what a SHA1 digest is, please visit this website: About SHA1 digest
For detailed information on the security content of this update, please visit this website: Apple Security Updates