.VS4 File Extension
File TypeAVTECH CCTV Video Surveillance File
What is a VS4 file?
Video surveillance file recorded by an AVTECH digital video recorder (DVR) or closed circuit television (CCTV) system; saves the recording in a proprietary format that can only be played by AVTECH software; used for archiving and reviewing security system videos.
VS4 files can be played back using a program called Video Player, which is included with the Video Server E software. The software is also referred to as "AVTECH DVR Software / .VSE File Player."