An event raise twice when click the button. "David"<david[ at ]mopNOSPAM.com> 16.07.2006 11:25:34 Hi , I created a Command bar with two buttons.Both have a uniqe Tag value each time the bar is created. When I install this add-in in my developing machine it's work great. But when I install it in another machine I see that when I click one of those buttons the mailItem_Close event raises twice and it cause problems. I don't understand the reason it raises twice. Can you help me to solve this problem ? Thanks, David