IE10 for Windows 7 Globally Available

I use a win8 vm for IE10, win7 for IE9 and run copies of XP mode within win7 for IE 6-8

No.

If they're in a situation like this, it's incredibly unlikely that anyone has the knowledge necessary to do this, let alone the time, inclination, or (perhaps most importantly for enterprise companies) business approval. The vast majority of enterprises cannot just publish production code at their own discretion.

Beyond that, it doesn't actually work: some features won't be completely compatible so you're effectively creating a third browser to test and support. In the case of IE8, it was mostly IE7-compatible but it relied on the browser not throwing errors when JavaScript attempted to set syntactically invalid styles and IE8-in-IE7 still raised exceptions deep in a third-party library licensed by the app vendor. This app was made by a very large, wealthy company – we were paying mid-six-figures a year for "support" – and they preferred infrequent massive update releases, which meant that a week after I reported the bug (around the time Microsoft started pushing IE8 as an automatic install) one of their managers contacted us asking for the patch I wrote so they could redistribute it to other customers.

This is why I won't work on enterprise systems.

Once Windows Vista starts to take off, probably when the first service pack comes out, I fully expect the people still using XP to begin the upgrade process.

Once Windows 7 starts to take off, probably when the first service pack comes out, I fully expect the people still using XP to begin the upgrade process.

Heard it before. I expect some people to never ever leave XP, because they'll have one little activex control that their entire multibillion dollar operation runs on, and they will continue to insists a shrinking pool of vendors support it at all costs, because any expense is worth it compared to any downtime experienced by shifting their business process to anything resembling modern technology. They will be few, but they will still exist.

They put it on windows 8 because we have enterprise edition available to us at no additional cost and that ships with hyper-v at no cost.

VirtualBox is a royal POS and VMware is expensive so this means a significant cost saving.

Yes.

For the penguins I noticed a few graphics glitches on IE 10, though, namely that penguins sliding in from the bottom or right are not rendered completely immediately, so you get only half a penguin until it redraws completely. In other sites IE tends to skip frames to keep up with rendering sometimes (although that was on an old Intel graphics chip, so might not have been that comparable).

http://blogs.msdn.com/b/ie/archive/2010/04/07/a-closer-look-...