Had inordinate problems over the last five days or so with new versions of iTunes (32-bit and 64-bit) that I've downloaded (automagically or manually).
First off was a 64-bit manual download of V9.2.1.4 intended for an all-new install on a Win 7 PC.
The download turned out (or so it appears) to have been corrupt (and that was the same for three successful downloads saved in different places on the Win 7 PC.
On Friday, though, that version appeared to have been replaced on Apple's site without any announcement I could see. The newer version was V9.2.1.5 and that worked worked just fine.
Today, I've had almost identical problems with two different 32-bit installs.
First there was a 32-bit automatic update on a Win XP PC from 9.2.0.61 to 9.2.1 (no further info given) - so I'm thinking it's probably a broken version of 9.2.1.4.
Also today, I downloaded manually a 32-bit V9.2.1.4 for Vista on another PC and this failed to install. However, when I got iTunes to update automatically, that went on okay and installed V9.2.1.5.
In the interim, I'd downloaded another 32-bit version of 9.2.1 (further info unspecified before the download) on the Win XP machine and this turned out to have no identifiers when I looked at the properties.
A whole of weird stuff going down with iTunes, me thinks!