Top "Xap" questions

XAP is an XML-based declarative framework for building, deploying and maintaining rich, interactive Ajax powered web applications.

Xap packaging failed. Object reference not set to an instance of an object

I'm getting this error message on my PC when I try to build my Windows Phone app: Xap packaging failed. …

visual-studio silverlight windows-phone-7 windows-phone-7.1 xap
Cannot install company app on windows phone 8

We are developing a company app for windows phone 8. I have followed every step described in Company app distribution for …

windows-phone-8 code-signing xap code-signing-certificate
Forcing browsers to reload Silverlight xap after an update

I have a Silverlight control packaged up and deployed to a SharePoint web part. I'm having trouble with the browser …

c# silverlight deployment caching xap
Making the Silverlight XAP file expire from browser cache programmatically

How to do I prevent a Silverlight XAP file being cached by the web browser? The reason I want to …

silverlight browser caching xap
Testing .xap on windows phone 8, without registration

I have got a .xap file, i mailed it and opened it in my windows phone 8. It gives me company …

windows-phone-7 windows-phone-8 xap
What is XAP file on Windows Phone 7?

I really want to know what the XAP file on Windows Phone 7 is; how important it is; and how I …

silverlight windows-phone-7 xap
"Can't install company app" on Windows Phone 8

I've developed a company app for Windows Phone 8, and have gone through all the recommended steps to set it up …

windows-phone-8 code-signing xap code-signing-certificate
Install XAP file locally in windows phone 8.1 device

Hope You are doing well. Actually i have created one windows phone 8 application. So for testing i have installed the .…

windows-phone-8 windows-phone-8.1 xap appx windows-dev-center
How to open a silverlight file in visual studio

Just a quick question. I have a system which contains some silverlight elements to it. I don't have any idea …

visual-studio-2010 silverlight-4.0 xap
Different ways to install windows phone application on device

I have developed a windows phone 8 application. I have a developer account and unlocked device. Now I'm able to deploy/…

windows-phone-7 deployment windows-phone-8 installation xap