Submit form by E-mail

I have created a form that preferably should be possible for a user who has Adobe Reader to send by E-mail. I've noticed that the standard 'Email Submit button' in LiveCycle attaches the form as an xml file, but I would like to attach it as pdf. From my LiveCycle book I found a solution that allows for the form to be sent as a pdf file, with the following code:

var mail = "mailto: mymail [at] mymail [dot] com?subject=Testing testing";

event.target.submitForm( {
cURL: mail,
bEmpty: true,
cSubmitAs: "PDF",
cCharset: "utf-8"
});

But in order for that to work, it states that one of the following must be true:

1. the form fillers must have Acrobat
2. the form must be Reader extended

I have tested that the submit button works, but I have Acrobat installed, so therefore it's not a problem. For the users who only have Reader though, the button does not work.

I'm not quite sure what the second point above means, the 'Save As' options I have only includes different versions of Acrobat (6/7/8, dynamic, static etc.) My form is per now saved as Acrobat 7 Dynamic XML form, and this obviously does not allow Reader users to send my form by e-mail (as pdf)

Any suggestions?