This is hardly the first annoyance I have already had with Vista RTM, and I am barely a few hours into using the final version, but the issue I am going to talk about is the most infuriating from a MSDN subscriber point of view.
I started using Vista for real today, installed the RTM and Office 2007 from DVD/CD (I burned both on OS X with the included Disk Utility, assuming I would be passing the discs around), and then realized I wanted to take a look at Visio 2007. So I started downloading the ISO from MSDN. I expected that MS would have finally included ISO files as mountable images, you know, in the OS. OS X has supported mountable disk images, both its DMG format and ISO formats for a while now and I certainly expected that MS would copy this with Vista. I mean every MSDN subscriber has to mount ISO images, why wouldn't you include a driver to make ISO appear as volumes?
While waiting for the download, I tried to install the unsupported Virtual CD driver for Windows XP on Vista, which failed spectacularly, so I actually was more encouraged that Vista had ISO image support built-in. Unfortunately I was wrong, Vista doesn't know what to do with these files. The good news though is that setting up a share on Vista was a lot easier than on Windows XP because I had to enable one so I could copy the ISO file over to my MacBook Pro, mount the ISO, and then copy the contents back over to the Vista PC I am testing with. The other good news is that Windows File Sharing worked perfectly between OS X 10.4.8 and Vista :-)