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Editorial Team
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Asked: 2026-05-23T15:39:32+00:00

I have developed two Windows Phone applications and would like to deploy them on

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I have developed two Windows Phone applications and would like to deploy them on a physical device for a demo. I can deploy and run each of them separately on a physical device, but I cannot deploy both of applications at the same time. Are there any restrictions on number of applications deployed?

Observable behaviour:

  1. Open first project in VS, Rebuild, Select “Windows Phone 7 Device”, Deploy.
  2. Application appears in the phone. Fully functional.
  3. Open second project in VS, Rebuild, Select “Windows Phone 7 Device”, Deploy.
  4. During the deploy process the first application disappears and the second one appears in a few seconds.
  5. Second application is fully functional.

More information:

  • applications are developed and deployed through VS2010 Ultimate SP1;
  • physical device: Samsung Omnia 7;
  • phone is unlocked;
  • applications have different names (xap file name and title);
  • ProjectGuids are different in csproj files.

Has someone encountered similar issues?

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1 Answer

  1. Editorial Team

    Ensure that the value for the ProductId attribute in the App element of the WMAppManifest.xml file is different in each application. You can generate a new GUID from the Tools menu in Visual Studio if necessary.

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