Hi, We are in the process of building VSTO 2005 customizations for MS Word 2003. One of our requirements is to add menu items to both custom menus (say MyMenu) and existing menus (say File) Scenario 1: We create a menu called MyMenu after Help menu in Microsoft Word 2003. We add TestMenuItem under MyMenu and call a function which displays a message box in TestMenuItem's click event The function is getting called and the message is displayed. Scenario 2: We add TestMenuItem under File Menu in Microsoft Word 2003 and call a function which displays a message box in TestMenuItem's click event But the function is not getting called. No Exceptions are displayed. Can someone tell me what should be done in order for the function to get called. Thanks, Jayashree