Search for: KB10667 - MDA / LoadLock message when debugging XDK application inside Visual Studio. Nothing is wrong. This message is just .NET specific. Read more about Managed Debugging Assistants at: http://msdn2.microsoft.com/en-us/library/d21c150d.aspx. In this material you can find instructions how to disable MDA. One very simple, but somewhat aggressive, way to disable MDA is to tweak the registry by: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework] "MDA"="0" You can restore the MDA setting by: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework] "MDA"="1" Created: January 10, 2006, Modified: September 16, 2015