Thanks for you comment. I don’t think that you can attach a file that way, since it would mean that you could attach a file with a standard link in a browser. For example, if you have a page with an anchor tag, you could attach a windows system file (since most people have windows installed at c:\windows it would be quite easy to guess where it is) without showing the user too much.

Since the solution i showed creates a standard javascript inside a html page, I would guess that the same restrictions apply there.

But please let me know if you find a way of solving it.

private function mailto():void
{
var html:HTMLLoader = new HTMLLoader();
html.htmlHost = new HTMLHost();
var mailtoString:String = ‘location.href=’;
mailtoString += ‘”mailto:name@domain.com?’;
mailtoString += ’subject=hello’;
mailtoString += ‘&attachments=C:\flex3\test-app.xml’;
mailtoString += ”;
html.loadString(mailtoString);
}