If you have an old product key (e.g., from a VB6 CD you bought years ago), downloading an ISO to install from that key is ethically and legally defensible. If you have no license, consider alternative modern tools discussed at the end of this article.
Some developers host the extracted contents of the ISO (not the ISO itself) for use in CI/CD pipelines. While not the full disc, their README often links to the original ISO source. visual basic 60 iso file download high quality