I wrote an application with c#.Net (assume like winzip) that I want: 1-Add this application at the context menu of all files and folder with icon(I saw some articles that edit registry to add right click menu item but I need add text and icon not just text) 2-Get path of selected folder or file or files in my program(I knew that "%1" get path of selected file but in case of multiple file selection what?I need an article to explain acceptable arguments) 3-I need to associate one extension (like .sar) to my program at the all of windows(XP,Vista,7). Thanks.

Hi, Regarding the development issue, please contact MSDN forum to get more specialized support. MSDN Forum http://social.msdn.microsoft.com/Forums/en/winforms/threads Best Regards, NikiPlease remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.