64-bit QuickTime for Windows (iTunes as well)?

There is no 64 bit Windows OS version of QuickTime (or iTunes).

I don't own or use a 64 bit Windows machine.
From what I've read most software can run in "compatibility" mode on a 64 bit OS. That is, a special window dialog or setting is made for that application and it then runs as 32 bit (native for QuickTime on Windows) mode.
Check your "help" files or do a bit of Google searching about the issue. Only Apple knows when a 64 bit Windows version will be made available. I'm just a user like you.

... Actually, the latest version of iTunes (7.6.0.x) does support Vista 64-bit (not XP, though). There are different installers for each type of system (32-bit and 64-bit). Typically, during the downloading process, the browser should grab the version that matches your machine hardware.

What browser are you using for the download? The Firefox 32-bit version (if installed on a 64-bit machine) will sometimes drag down the 32-bit version of the installer instead of the 64-bit version. If you use a 64-bit Firefox (or a different browser altogether), does it fetch you the correct 64-bit version?

I was also running Vista 64-bit Home Premium and could not run quicktime or itunes. Not until I down graded my PC back to the 32-bit am I able to run these programs. It ***** though forI can't use the whole potential of my PC until all these programs are blessed by microsoft. I just assumed keep running the Vista 32-bit untill Microsoft gets with the program, or Apple pushes the issue!!!

I posted a similar problemn to a Windows discussion. I cannot install QuickTime Pro in my Vista 64-bit system because there is no QT icon on the Control Panel.
How can I tell if I have the 32- or 64-bit QT installer? The installer file is Ver. 7.4.5.6.7. I downloaded it with IE7. For that matter, how can I tell if I have Firefox 32- or 64-bit? I don't seem to have a choice of downloads....

I found a simple workaround for both iTunes and Quicktime in windows xp 64 bit. Since the latest version 7.6* the msi files check for system requirements and u can't continue if u are trying to install it on Windows XP 64. However i tried an older version of both iTunes and Quicktime 7.1.1 from http://www.oldapps.com/itunes.htm and worked fine. I did disable the iTunes and Quicktime automatic updates. Although the Quicktime 7.1 and iTunes 7.1 can be installed on windows Xp 64bit they are not 64bit apps. They use windows xp 32bit simulation but they do work fine. Probably in the next releases Apple will fix the requirements check in the msi files to enable the Windows XP 64 bit support.
May the packets be with you ........................