Windows 8 apps: how to move from Freemium to Free + In-App Purchases

Lately, my colleague Wouter van Ranst had an interesting question on how to switch from a freemium app to a free app with optional in-app purchases. His app (Angry Verbs – is currently in the store as a free time –unlimited trial. Some features are limited until when the users buys the app. In…


How to load test and get profiling results from a Web API hosted in a Windows Azure Cloud Service

This article describes how you can:   1.      Create a simple Web API in Visual Studio 2013 with some bad peforming code 2.      Host it on a Windows Azure cloud service 3.      Create a load test and run it first locally and then cloud-based (new feature of Team Foundation Service) 4.      Get profiling information from…


Join the Windows 8 App Race: Win Visual Studio headphones and Asus tablets

We want to give you a push in the back to develop great applications – join the Windows 8 App Race and win: How to win Your app(s) need to be published between April 1 and June 15, 2013. Complete the contest form(s) on There is no limit to the number of entries you…


Azure Virtual Machine: 56 GB memory and 8 Cores

I just noticed that there are 2 new machine configurations popping up for you to select when creating a new Virtual Machine: – A6 – 4 cores and 28 GB memory – A7 – 8 cores and 56 GB memory Interesting if you want to have more power 🙂  


Source site collection empty when creating a Content Deployment Path in SharePoint 2013

When setting up a new Content Deployment Path in Central Admin, I noticed it was not possible to select the source site collection. The drop down list does not contain an entry that can be selected, altough I do have a site collection.   There is a New-SPContentDeploymentPath powershell command, but executing this also gave…


SharePoint 2013 Machine Translations: The translation failed because the online translation service was unavailable

Recently, I started playing with this new Machine Translation Service application in SharePoint 2013, which lets users automatically translate documents. While setting up my new environment, I encountered a problem and this took me a while to figure out. Luckily I found a solution and with this article I want to share my experiences. So…


Windows Store now open to all developers in 120 markets

Great news for developers! Now you can get your own Windows developer account. The store is officially open in 120 markets (including Belgium) All eligible MSDN subscribers receive a free, one-year Windows Store developer account as part of their MSDN benefits. (Eligible subscriptions include Visual Studio Professional, Test Professional, Premium, Ultimate, and BizSpark.) We have…


Build your Windows 8 app NOW and get a €100 Connections voucher!

We hope you have already enjoyed a bit of sunshine this summer! We sure did at the first Summer App-a-thon in Blankenberge with a full day of coding & fun topped with a great show of fresh Win8 Metro apps! Grasp the first-mover advantage too and make sure your app is in the Windows Store…


SharePoint 2010 SPSite constructor returns System.IO.FileNotFoundException

Today, I encountered an issue with a console application written in .NET that accesses the SharePoint object model. I immediately got a FileNotFoundException when instantiating a new SPSite object. This is the code: using (var siteCollection = new SPSite(siteCollectionUrl)){ …. } I double checked the following possible issues: Are we running Visual Studio in Elevated…


How to authenticate with the Belgian eID card in ASP.NET MVC

This blog post walks you through the process of creating an ASP.NET MVC application that authenticates and displays some useful information available on your Belgian eID card. In order to authenticate, we will use an existing STS endpoint:, from which we will retrieve a set of claims. [Update]If you haven’t done so far, please…