My scenario is made up as follows:
I have applications, which are configured according to each client, are mass-sold applications, I have a support system, which automates this configuration and generates one executable per client.
After generating this executable (Inno Setup Installer), it is sent to the ftp of our site, so far so good.
However, when the client is going to download this system it displays that message that the file may not be secure, if you want to keep it.
ex: link
What do I need to do to make this file "safe", is it something on the site? or in the application? We are losing many customers due to this complication in the download.
[upd]
Following the friend's tip I tried:
But I still can not solve my problem, I managed the certificate through makecert , gave the sign . The download still looks as if it were dangerous .
I took this certificate and installed it on my machine , then the system detected correctly, but I can not install this certificate on the machine of each client, can I use paid certificates?