@Bo Ellegård Andersen (Milestone Systems) I’ve found a previous post (https://developer.milestonesys.com/s/question/0D50O00003EIsBVSA1/imageviewer-playback-wpf-examples) that shows an example, but references an assembly from the MIPSDK that targets .NET framework 4.5 ([C:\Program](file:C:/Program) Files (x86)\Milestone\MIPSDK\Bin\VideoOS.UI.Common.WPF.VideoPlayer.dll)
The WPF.VideoPlayer.dll was introduced on .Net 4.5. so there is no previous version, sorry.