Webrec.cab is a proprietary browser plugin that allows your computer to interface with surveillance hardware. Because it relies on , a legacy Microsoft technology, it is primarily designed for Internet Explorer . While modern browsers like Chrome and Microsoft Edge do not support ActiveX natively, you can still use this plugin by following specific compatibility steps. How to Download Webrec.cab There are two main ways to acquire the Webrec.cab file: 1. Automatic Download (Recommended)