Why does machine.config contain invalid Xml content after installing .Net 3.5 patches?

For quite a few times, I heard customers would hit this issue after installing .Net 3.5 patches or repair 3.5 on Windows Vista or Windows 2008 Server. Basically the machine.config file contains some invalid Xml content and applications using configuration do not work, especially for IIS-hosted applications. The main problem is that the WCF 3.5…

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WF 4 Performance Whitepaper Published

We have just published the performance whitepaper for WF 4 at the following location: http://msdn.microsoft.com/en-us/library/gg281645.aspx We have done quite some component-level performance measurement for different activities and scenarios. Here is one snapshot that I would like to share with you: As you can see, WF 4 is 10X – 100X faster than WF 3 at…

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