Install the internally attached SL OOB application. Start the installed application and try to configure it for testing. Test Studio prompts the following in the log: [07/17 16:40:41,Telerik.TestStudio.Desktop.exe(18996:9),Recording] IERecorderManager.LaunchNewRecorder() : EXCEPTION! (see below) Outer Exception Type: System.ApplicationException Message: Exception thrown attempting to launch Silverlight application. Please make sure Silverlight is properly installed and you are able to launch it. HRESULT: 0x80131600 (Official ID (if app.) = COR_E_APPLICATION, Error Bit = FAILED, Facility = FACILITY_URT, Code = 5632) Call Stack: at ArtOfTest.WebAii.BrowserSpecialized.SilverlightOutOfBrowser.SilverlightOutOfBrowserActions.LaunchNewBrowserInstance(Int32 timeout, ProcessWindowStyle windowStyle, String arguments, String pipename) at ArtOfTest.WebAii.Core.Manager.LaunchNewBrowser(BrowserType browserToLaunch, Boolean waitForBrowserToConnect, ProcessWindowStyle windowStyle, String arguments) at Telerik.TestStudio.Web.IERecorder.IERecorderManager.LaunchNewRecorder(Action`2 asyncCallback, FloatingUIMode mode, BrowserType browserType, String arguments) Inner Exception Type: System.ArgumentException Message: Invalid path to Out-Of-Browser application: C:\Program Files (x86)\SEL\SEL SynchroWAVe Event 2015\SynchroWAVeEvent.exe HRESULT: 0x80070057 (Official ID (if app.) = E_INVALIDARG, Error Bit = FAILED, Facility = FACILITY_WIN32, Code = ERROR_INVALID_PARAMETER) Call Stack: at ArtOfTest.WebAii.BrowserSpecialized.SilverlightOutOfBrowser.SilverlightOutOfBrowserActions.LaunchNewBrowserInstance(Int32 timeout, ProcessWindowStyle windowStyle, String arguments, String pipename)