Dvrwebclient.exe is a plug-in that allows users to access the NVR using a web browser. The web client allows you to view real-time monitoring, playback, or configure NVR without installing client software.

Applies to: Reolink PoE NVRs with hardware H3MB02, H3MB06, H3MB16, and H3MB17

The plug-in must be installed on your computer the first time you try to use it. You can then open it on your computer and run it by opening the program from a web browser. 

You may access Reolink NVRs via a web browser according to the two articles below: