I need to open a new mail window in microsoft outlook and attach a file from C;\...\... drive. I am using "Process.Start("mailto:" + EmailAddress + "?subject=" + Subject + "&body=" + Body + "&attach=" +CSVfilePath);" code to do this job, but the code does not attach the file...

Note: I need the new mail window open and I need to leave the choice to the user whether to click on Send button or not?...can someone please help............Thanks