Blue Iris is widely regarded as one of the most powerful and flexible video management software (VMS) solutions for Windows, allowing users to turn any PC into a professional-grade Network Video Recorder (NVR). The keyword refers to a specific sub-release of version 5, optimized for 64-bit English systems and packaged as a "portable" application. Understanding Blue Iris 5.3.8.17
Using motion or audio sensing to trigger recordings or alerts. Blue Iris 5.3.8.17 -x64--ENG--Portable-
Extract the archive to a folder like D:\PortableApps\BlueIris or a USB drive. Do not extract to C:\Program Files (that would defeat portability). "Blue Iris 5