Article ID: 980952 - View products that this article applies to.
You use the workflow designer to open a large or complex Windows workflow solution in the Microsoft Visual Studio 2008 Service Pack 1 (SP1) IDE. You try to open one of the following dialog boxes:
Note The performance issue occurs when your computer has Microsoft Enterprise Library installed together with the Configuration Editor for Visual Studio feature.
Hotfix informationA supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:
PrerequisitesYou must have Visual Studio 2008 SP1 installed to apply this hotfix.
Restart requirementYou do not have to restart the computer after you apply the hotfix if no instance of Visual Studio is being used.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
To improve the performance of the workflow designer, install the hotfix that is described in the following Microsoft Knowledge Base article:
980951Additionally, you can use the following methods to improve the performance of the workflow designer:
(http://support.microsoft.com/kb/980951/ )FIX: A workflow takes a long time to open when you use the workflow designer in a .NET Framework 3.5 SP1-based solution
Workflow designer and performance