Cannot open Itunes- Microsoft error

Question

Every time I try to open Itunes 7.1 I get a Microsoft error saying it encountered a problem and needs to close. I have tried installing and reinstalling and It continues to come up with this message and it will not open. Any suggestions? I should never have decided to try to upgrade.

Answer 1

replying to jigglydudesis
I have a K-Lite codec pack installed on my computer, I don't remember what version but its been less than a month since I downloaded the it. Are their any known problems between the two?
afraid so. the problems usually arise when the versions of the QuickTime codecs that come with the Pack are out of sync with the mimimum QT version requirement for the particular version of itunes you're running.
for example, itunes 5.0.x required at least QT 7.0.2, and K-lite Packs with the QT 6.5.2.10 codecs broke QT 7.0.2, which broke itunes 5.0.x.
itunes 6.0.x required at least QT 7.0.3 ... and ACE Packs containing the QT 6.5.2.10 codes would break that.
itunes 7.0.x requires at least QT 7.1.3. i've already seen a report of a version of the ACE Pack breaking QT 7.1.3:
http://discussions.apple.com/click.jspa?searchID=-1&messageID=3226147
... and a report of a K-lite Pack containing the QT 7.0.3 codecs breaking a QT 7.1.3:
http://discussions.apple.com/click.jspa?searchID=-1&messageID=3311325
it might not just be the codec mismatch that is causing the grief. in at least one case i've seen a report of a K-Lite pack installing an earlier version of qttask.exe (it's a quicktime background process and startup item) on a PC, and and a version mismatch between your QuickTime Player and qttask.exe could cause all manner of grief when upgrading or launching QT:
http://discussions.apple.com/click.jspa?searchID=-1&messageID=3212208
... but whatever the precise mechanism, the upshot is that the mega codec packs can break your QuickTime in nasty ways, resulting in a broken itunes that won't launch.