I was working on testing some bugs out on my BizTalk 2010 beta computer and encountered a popup in VS 2010 advertising that it would run faster with the addition of a certain patch for the Windows Automation API. I usually skip these on a test VM but sometimes VS 2010 does run pretty slow when you only allocate 1.5 GB for the whole VM. 🙂 So I clicked on it and downloaded it and was surprised that VS 2010 does run a lot faster even on only 1.5 GB of RAM.
This hotfix does not mention VS 2010 at all in the description: http://support.microsoft.com/kb/971513. This hotfix was created prior to VS 2010 RC so I guess it was suggested as a fix when the RC intellisense issues came up. I was using VS 2010 RTM Premium. This blog post mentions that the fix was already forward applied to VS 2010 RTM (http://blogs.msdn.com/b/visualstudio/archive/2010/03/02/second-patch-now-available-for-intellisense-crashes-in-vs-2010-rc.aspx), but this was not the case for me. I was not exactly encountering blocking performance, it just took a long time for VS 2010 to load and do things. I did not initiate the popup – it just appeared and I followed it so I am guessing this functionality to advertise the hotfix was a backup plan in case the VS 2010 RTM fix failed. Here is the Connect link for the original performance issue for anyone interested: https://connect.microsoft.com/VisualStudio/feedback/details/532783/very-slow-intellisense?wa=wsignin1.0.
Anyway, I recommend applying this hotfix for faster VS performance. Interestingly, this hotfix comes in a different download for XP – http://www.microsoft.com/downloads/details.aspx?FamilyId=cd55456d-9703-42a0-b982-8a8a89ca0aa3&displaylang=en. This may even improve VS performance for previous VS versions before 2010.
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