Hello,
Two things About anti-virus:
1. Phillip has no control about anti-virus software, as none other developer has really. For example, me too, each time I release a new version of the playroom windows client, it is also often flagged.
Gradually anti-virus stop flagging afeter a while because they see that the same copy has been downloaded a few thousends of times, and they assume that, since many people use it, it finally has probably no virus.
In fact the only way to make sure not to be ever flagged is to certificate sign your software; what of course costs a few hundreds dollars a year.
So, as a developer, we need to make a choice: enter in the business logic, or remain free. For the playroom I chose to stay free as long as donations are sufficient to keep the system up.
2. In fact, even if Phillip would release a new version of BGT, it is always probably going to be flagged by anti-virus anyway.
The problem is that BGT use a few techniques that are also sometimes used by malwares. I won't go into details here but if you are interested, make a search about self-extracting executable, executables with appended resources, or resource injection.
By the way, these techniques prevent from signing executables altogether, so he couldn't have done it while BGT was a paid software anyway.
And now, a more general thing:
When Phillip decided to release the full version of BGT for free, you should consider that it was part of an abandon. It should have been a signal that he weren't going to work on it anymore.
It's easy to say this after 5 years of hindsight, but think about it 2 minutes: why would you stop selling something and suddenly give it away for free ?
IF you are planing updates, you don't do this; you continue your business... don't you ?
It would have been different if BGT was totally free from the beginning. But remember, it wasn't.
In the same situation, many others continue selling their product without promising any update, laugh at you or even don't answer at all when the product doesn't work anymore after 6 months, or even, in extreme cases, the company totally disappear. In all these cases you may feel stolen. By releasing BGT for free, nobody can't say anything.
In fact, Phillip took a quite honnest decision here. He could have gone further by releasing BGT in open source, but making it free is already quite fair compared to many others who don't care so much.
I find the decision about Q9 much worse and infortunate, where he should have done the same, but well... it's another topic.
There are 10 kinds of people : those who know binary, and those who don't.