Article ID: 970924 - View products that this article applies to.
Consider the following scenario:
The decrease in performance is caused by the following issues:
Hotfix Replacement InformationThe hotfix that corresponds to KB970924 has been superseded with the hotfix KB981574, which contains all fixes that were previously included in KB970924. You should use the hotfix KB981574 to fix the issues described in KB970924. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/981574/ )The splash screen stays open longer than usual when you try to start Excel on a computer that has the .NET Framework 3.5 SP1 installed
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
The hotfix postpones the symbol flushing in the TypeBuilder.CreateType method when the dynamic assembly does not have to be run immediately. Also, the hotfix changes the implementation of the stream symbols to use an O(n) algorithm to write n bytes of symbols. This implementation change is applied to all the AssemblyBuilderAccess modes. After you install the hotfix, the performance will improve significantly. However, the memory usage will also be increased.
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