This is a test plugin for manual testing of the Pepper plugin API. See https://wiki.mozilla.org/Plugins:PlatformIndependentNPAPI Open the Chrome all.sln solution and rebuild the pepper_test_plugin and chrome projects. To load this plugin in Chrome, use the command line flags: --no-sandbox --internal-pepper --load-plugin=<<>\src\webkit\tools\pepper_test_plugin\Debug\pepper_test_plugin.dll A simple way to launch Chrome with these command line flags is to run the generated pepper_test_plugin project. Note that pepper_test_plugin is not dependent on the chrome project so you need to remember to build Chrome separately if necessary.