Tell your ISP we host our files on Amazon, so it won't make any sense they would block the download. If they'll try to say a defective antivirus they use had detected "dangerous" content, tell them we use the following industry-standard, to prevent false positive detection:
- Our own Authenticode digital signature, to sign all our executables.
- The additional IEEE standard "Taggant" signature for our executables, which is explicitly designed to prevent false positives.
So, from our point of view, we follow all recommended standards to prevent false positive detection but, unfortunately, not all antivirus/firewall software (including the one installed on servers) are able to follow their own recommendations against false positives.
