1. Log in to your SolidProfessor account and from your dashboard click on "Download the SOLIDWORKS Add-in".
2. Select your installer based on your operating system.
If you're unsure of which operating system you're running, see this article.
3. Within SOLIDWORKS, click on the "Options" icon and "Add-Ins...".
4. Check the box next to "SolidProfessor Web Addin" and click "OK".
5. Click on the SolidProfessor icon from the add-ins toolbar and log in to your account.
If you have trouble using the add-in, see this article for troubleshooting tips.