Anti virus programs assumes my application as containing virus

Hello friends.

I wrote a program which is working properly. My program is also checking new versions from my server and download it to local driver of users. But most anti virus programs assumes my application as containing virus. How can I pass anti virus programs to download new version of my program ?

I used below commands in my program :
Inet1.OpenURL to check new version
URLDownloadToFile to download new version