QuickTime for Windows is prone to a remote code-execution vulnerability because the application fails to handle URIs securely . Successfully exploiting this issue allows remote attackers to execute arbitrary applications with controlled command-line arguments. This facilitates the remote compromise of affected computers. QuickTime 7.2 running on Microsoft Windows Vista or XP SP2 is vulnerable.
Run all software as a nonprivileged user with minimal access rights.
To limit the consequences of a successful exploit, run all client software with the least privileges required to maintain functionality.
Do not follow links provided by unknown or untrusted sources.
To limit exposure to this and other latent vulnerabilities, do not follow links or visit sites of unknown or questionable integrity.
Apple has released an advisory and fixes to address this issue. Please see the references for more information.