Norton warns my users from downloading my program!?

Hi,

 

hope that this is the right please for this issue.

I am the developer of mcShoutCast and got some mails from users within the last week.

 

Mail 1:

"Really?  You want me to pay you to give me the Heuristic Virus in your download?  I don't think so!  Do you people really have nothing better to do than to **bleep** with other people's computers?!  These people trust you to deliver a great radio plugin and instead you drop them a virus.  You are seriously a **bleep**ty human being.  Thank god I have Norton, or you would've **bleep**ed me over too."

 

Mail 2:

"Norton internet security find heuristic virus in this file & wont let me hold it on my  hard disk, it must delete it."

 

6515i119096B2B78108A4

 

For sure I dislike such mails because the download doesn't contain any viruses!

That message harms my business!

 

My questions are:

a) What is the reason for such a message?

b) How to get rid of it?

 

Kind regards,

Sörnt Poppe