Attachment in "mailto" ??

Question

I have an aspx page, in that page on a button click i have to send the mail without going to server side..

 

 My requirement is i have to use only the "mailto" option available in html.

 

I referred some sites, mostly they posted the below code.

 

< a href='[email protected]?body=somebody&subject=someSubject&attachment="C:\\myfolder\\myfile.txt"'>my link < /a> 

 

but it doesn't work..

 

Can any one help me ?

 

Thanks in advance.