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Great info this issue, much of it to do with app deployment.
Big news: no more repackaging.
Application shimming will enable apps to run without granting permissions on protected registry areas and the file system. Forget anything you've seen here about having to "create shims" - total waste of time. And FWIW, I've never seen any documentation on "creating shims" for apps on Vista or Windows 7...I mean, wouldn't that kind of defeat the purpose of having this OS feature if the administrator has to futz with or "configure" the shims. What nonsense.

Shimming is part of the OS. Long live shimming! Long live well written apps! Quickly die, repackaging.

Also featured: "whitelists" so that Windows will run ONLY the apps you tell it to run....could it mean the end of antivirus software and its interminable crap, its constant updates, its performance hits? Dare we hope?.....

Finally, will the hardware makers finally get their acts together and start beefing up the memory? I'm seeing machines with 2,3,4 GB. WTF? We should be seeing memory of at least 10-20 GB. Then you'll see some shit fly. What's the theoretical limit for x64 sytems, like 32 TB?

Best regards and comments welcome,
Owen
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Preface: I've run a few shimming engagements.

I don't see how shimming ends repackaging. There are shims that allow for file and registry virtualization (redirection) but shims will not help you make an installer silent, which is why we repackage most of the time.
It's true, you don't create a shim. You do however have to configure some of the shims with parameters (ie what file path to virtualize), and this requires deep O/S knowledge.
You will need to tell the O/S what shims to apply to an executable. Microsoft has built into W7 the ability to identify some apps that will be shimmed, but the list is mostly comprised of retail games and home-user applications. This list is updated via Windows Update as Microsoft shims more apps internally.

As for hardware memory, you'll need a 64bit OS to see anything over 3GB. It really only makes sense to go to W7 64 bit, but a lot of software doesn't WOW to 32bit mode well, or at all. Even some of the support tools from Microsoft don't currently run on 64 bit such as App-V.

Here are the limits for addressable memory in W7 64 bit:
  • Starter: 8GB
  • Home Basic: 8GB
  • Home Premium: 16GB
  • Professional: 192GB
  • Enterprise: 192GB
  • Ultimate: 192GB
Answered 10/04/2009 by: turbokitty
Sixth Degree Black Belt

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