Hide Flash right-click menu:

Step1: Open New document in flash (Ctrl + N)

Step2: Select first frame, right-click and paste the below code in first frame



code contains explanations

var con:ContextMenu = new ContextMenu();//The ContextMenu class provides runtime control over the items in the Flash Player context menu, which appears when a user right-clicks (Windows) or Control-clicks (Macintosh) on Flash Player.
con.hideBuiltInItems();//Hides all built-in menu items (except Settings) in the specified ContextMenu object
_root.menu = con;//Associates the ContextMenu object con


your are done now run flash and right click