Apple: QuickTime and Six More
QuickTime is notoriously slow, sluggish and very seldom used in the Windows operating system. If it was forced on you when you installed iTunes (Apple tends to whore its apps on you), remove it now, you don’t need it, nor will you ever – as there are tons of apps that do a much better job at playing video on the PC.
Apple has released patches for many vulnerabilities in QuickTime over the past year. QuickTime vulnerabilities account for most of the attacks that are being launched against Apple software. Note that QuickTime runs on both Mac and Windows Operating Systems. The following vulnerabilities should be patched for any QuickTime installations: CVE-2009-0007, CVE-2009-0003, CVE-2009-0957