I need to place a popup window in an Asp Net application with Visual Studio 2015. For this I used the MeupopUp Extender of Ajax Control Toolkit (version 16.1.0) I made the most basic example, but it does not work. I searched and read, but all the examples and comments always talk about Ajax Toolkit with the 2010, 2013 versions. Does not work with version 2315? Stay tuned to your comments greetings