The email from SolidWorks finally arrived, five hours later. I clicked the link in the email to verify my email address, which produced a page thanking me for doing so and inviting me to login. When I did, I ended up on a "Siebel Customer Portal Home" page. This has a section for downloads, but virtually all of the choices are grayed out with a little lock icon next to them. The lock means, "Active subscription service contract required for full access."

So, still no way to download the SolidWorks installer.