Microsoft Exchange 2010 & .Net Framework 4.5 Issue

Microsoft Exchange 2010 SP 2 stop working with .NET Framework 4.5, email stop working.

By logging in the Exchange Management Console, we will notice that the database is unmounted and you are unable to mount it back on.

To resolve this issue with Microsoft Exchange 2010, you need to update it with the Microsoft Exchange 2010 service pack 3. After which it should start working for you.

Note: Did a further testing on Microsoft Exchange 2010 with SP 1 seems like this issue does not exist.

Not very sure why this is happening and this is the quick fix I figured.


Xcode & Three20 Framework

This article will cover the basic of adding the Three20 framework to your Xcode 4 solutions.

A little background of this particular framework, quoting from the source.

Three20 is a open source Objective-C library used by dozens of well-known brands in the App Store, including Facebook, Posterous, Pulse,, and SCVNGR. Three20 provides powerful view controllers such as the Launcher, the popular Photo Browser, and internet-aware tables.

Another post will be written to discuss about the features of the framework, Three20. But for now let’s us get started on adding this the Three20 to your Xcode 4 project.

Three20 source code could be downloaded from the following link.

I do strongly suggest that you download the tar.gz version.

  1. Start by extracting the content of the file you downloaded from the site.Again, I suggest that you should extract the file on the desktop.
  2. Locate the file at that paticularly path three20/src/script/

    xcode4 three20 facebook
    xcode4 three20 facebook


  3. Open Terminal,
    Enter: python
  4. Drag into the terminal window,
    Enter: -p
  5. Locate your xcode project, Drag the .xcodeproj file into the Terminal.
    Enter: Three20
  6. Check that the Terminal Window should now look something like this
    > python /Users/xxx/Desktop/three20/src/scripts/ -p /TestingProject/TestingProject.xcodeproj Three20 
    Press Enter.

 This will add the Three20 framework into the xcode project and you can find out more on how to use the following at the following site.