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Please suggest somebody. I am new Wndows Phone developer. Can we install Windows Phone 7 SDK developed apps on Windows Phone 8?

I have installed Windows 7 on my system and when I tried to download and install the Windows Phone 8 SDK, Microsoft says Windows 8 is required for the Windows Phone 8 SDK. Here is the download link for the SDK: http://www.microsoft.com/en-in/download/details.aspx?id=35471

Thanks in advance.

Abbas
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Ravinder Singh Bhanwar
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5 Answers5

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Of course, all Windows Phone 7 apps can run on Windows Phone 8.

Aleksei Kosozhikhin
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Just to make a clear answer: yes you can. I do this all the time. You will need a 64bit Windows 8 machine with the WP8 SDK on it (which includes the 7 SDK) to be able to deploy your WP7 app to a WP8 phone. it works the way it always has: just hit run from VS (only difference is that you don't need Zune to deploy to a WP8 device). You can also use the WP Application Deployment tool to deploy any .xap file outside of VS2012 (even if it was built on a Win7 machine, but you still need Win8+WP8 SDK to deploy with that tool).

dotMorten
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You said it yourself. You have Windows 7 installed on your system and the Windows Phone 8 SDK requires a system with Windows 8 installed. So, the answer is no.

If I'm not mistaking, apps that were developed using the Windows Phone 7.5 SDK kan be 'converted' to Windows Phone 8 apps. For that you will have to open the 7.5 solution in Visual Studio 2012 with the new Windows Phone 8 SDK installed. I don't know for sure if this works but this worked for covnerting Windows Phone 7 apps to Windows Phone 7.5 apps.

Abbas
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    Windows Phone 7.5 developed apps will run natively under Windows Phone 8. No conversion required. There are a small minority of WP7.5 developed apps that prove problematic, but the vast majority will work as normal. You cannot, as you rightly say, however develop a native WP8 app, with any WP8 enhancements, with the 7.5 SDK, but it should still work. – anothershrubery Jan 15 '13 at 14:33
  • Thanks for clearing this out, as I said: I was not sure myself. :) – Abbas Jan 15 '13 at 14:38
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When you have Windows Phone 8 SDK you can develop app for Windows Phone 7 also. WP8 have a some new features. When you don't use this features app will working on Windows Phone 7 succesfully. http://www.phonearena.com/news/Will-Windows-Phone-77.5-apps-work-on-Windows-Phone-8_id34959

Norbert Pisz
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If you want to develop apps for Windows Phone 8, you have to update your OS to Windows 8, then the installation of WP8 SDK will work.
If you don't want to install Windows 8, just download the Windows Phone 7.1 SDK and use it on Windows 7. Apps developed for Windows Phone 7 will work just fine on Windows Phone 8 devices.

Martin Suchan
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  • There are a number if incompatibilities, so no they won't necessarily work and you should test your wp7 app on a wp8 device. Don't count on it just working. I've found several compatibility bugs. – dotMorten Jan 15 '13 at 15:44
  • windows phone 7 apps dont work on windows phone 8 necessarily – user1800552 Sep 16 '14 at 11:43