Mailbag: How to revert to older versions of the .NET Framework 4 family

Question: I recently installed the .NET Framework 4.6.1 but ran into a compatibility issue with an application that I’m trying to use. How do I revert back to the .NET Framework 4.5 on my PC? Answer: All versions of the .NET Framework 4 family are in-place upgrades, which means that they replace previous versions of…

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Mailbag: Does my application need to install the .NET Framework 4 on Windows 8 or Windows Server 2012?

Question: I have an application that requires the .NET Framework 4. The application supports running on Windows 8 and Windows Server 2012, which both include the .NET Framework 4.5 as a part of the operating system. Does my application installer still need to install the .NET Framework 4 on these operating systems even though the…

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Mailbag: Do I need still need older versions of the .NET Framework on my system after installing the .NET Framework 4?

Note: This is an updated version of a previous mailbag entry that I posted before the .NET Framework 4 shipped. Question: I recently installed the .NET Framework 4 on my system. Afterwards, I looked in Add/Remove Programs, and it shows that I have all of the following versions of the .NET Framework installed on my…

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Mailbag: How can I reset Windows Update if it tells me I need an update that is already installed?

Question: I recently received a .NET Framework update from Windows Update.  It installed successfully, but Windows Update continues to offer this update to my computer afterwards.  How can I get Windows Update to detect that this update is correctly installed on my computer? Answer: In some cases, Windows Update can get confused and think that…

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Mailbag: Can I install Windows Phone Developer Tools without the Visual Studio 2010 Express for Windows Phone edition?

Question: I already have Visual Studio 2010 Professional installed, and I would like to use it for Windows Phone development.  The Windows Phone Developer Tools installs Visual Studio 2010 Express for Windows Phone, which I don’t intend to use.  Is there a way that I can install the Windows Phone Developer Tools without installing this…

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How to open a Windows Phone .sln file in Visual Studio 2010 Professional instead of Visual Studio 2010 Express for Windows Phone

Question: I have a Windows Phone project that was created by somebody else, and when I double-click on the .sln file, it opens in Visual Studio 2010 Express for Windows Phone.  I have Visual Studio 2010 Professional installed and would prefer to use that for my Windows Phone development scenarios.  How can I force Windows…

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Mailbag: Why is the .NET Framework still listed in the Programs and Features control panel after running the cleanup tool?

Question: I ran the .NET Framework cleanup tool and removed all versions of the .NET Framework from my computer.  Why do I still see the .NET Framework listed in the Programs and Features control panel after removing it with the cleanup tool? Answer: Just because an item is listed in the Programs and Features control…

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Mailbag: Should I re-install the versions of the .NET Framework in a specific order?

Question: I used the instructions and the cleanup tool in this blog post to remove all versions of the .NET Framework from my computer, and now I want to re-install them.  Do I need to re-install them in any specific order? Answer: In general, the versions of the .NET Framework allow you to install in…

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