You receive unhandled exceptions in the WPF Designer. For example, you may receive the following exception:
Attempted to read or write protected memory
To resolve this problem, install Windows Vista Service Pack 1 (SP1) Release Candidate (RC).
Note This method may not resolve this problem in all scenarios. If this problem still occurs after you install Windows Vista SP1 RC, contact Microsoft Customer Support Services. For a complete list of Microsoft Customer Support Services telephone numbers and for information about support costs, visit the following Microsoft Web site:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
If you encounter the problems that are mentioned in the "Symptoms" section, run the .NET Framework 3.5 Installation validation tool to determine whether your computer is in a known problem state. To do this, visit the following Microsoft Developer Network (MSDN) Blogs Web site:
If this diagnostic tool reports that your computer is in a known problem state, run the Collect tool to collect Visual Studio 2008 Setup log files. This will help Microsoft find the source of the problem. To do this, visit the following MSDN Blogs Web site: