Dhsurveillancedll.dll file is part of product developed by . It is responsible for functionality. This part is required for to function. If you are planning on replacing dhsurveillancedll.dll with a new version make sure that you backup your old file. Replacing dhsurveillancedll.dll file with a diffent version can cause to malfunction.
|Dll file name
|Program Files webrec WEB30 WebPlugin
|Program Files (x86) webrec WEB30 WebPlugin_V2