: If you lose your serial number, you can request a retrieval through the Source Insight Support page using the email address used during purchase.

📍 : Source Insight License Management Guide

Source Insight license key (or serial number) unlocks the full professional features of the Source Insight code analysis and editing platform. Once a valid key is entered, it removes the 30-day evaluation limit and provides a permanent license for the software. Source Insight Key Licensing Features Multi-Device Activation

A common "scare" for new users is finding their files are suddenly read-only. While this can sometimes be a licensing issue, it is often because the file is part of a read-only project or an "import" project for external symbols. Version 4.0 Changes: If you are upgrading from Version 3.x, note that Source Insight 4.0