Quadrox WebCCTV Installation Manual - Manual (Page 46)

WebCCTV Installation Manual 46
Version 4.4 Series
4.2 Video Client Component (ActiveX)
Having a correct installation of the Video Client component is an essential part of a successful
WebCCTV installation. Problems like black images appearing, no images appearing at all and
errors in Internet Explorer can be the result of an incorrect Video Client Component
installation.
This Video Client Component is based on ActiveX technology. ActiveX is an architecture that
lets a program (the ActiveX control) interact with other programs over a network (such as the
Internet). In our case the Video Client Component communicates with the WebCCTV and
shows video images.
An ActiveX control can be integrated into various environments like a web page. When an
ActiveX is integrated into a web page as in the WebCCTV web application, the first time a
client machine accesses this web page with Internet Explorer the ActiveX needs to be
downloaded and installed on the client machine. At this stage there are several potential
problems for the installer to be aware of:
The Windows user account under which this web page is accessed doesn’t have enough
rights to install the ActiveX component on the client system. This results in not seeing
images at all.
The security settings of Internet Explorer prohibit the installation of the ActiveX. Add
the site to the Trusted sites before installing the ActiveX.
Spyware blockers or anti-virus programs don’t allow the installation of an ActiveX on
the client machine.
The Video Viewer ActiveX utilizes various other Windows System components. If any
of these system components are incorrectly installed or not present, at all the ActiveX
will fail to install or work incorrectly.
It is important that the ActiveX installation is monitored carefully. This has to be
performed only once during the first time that the WebCCTV web application is
accessed. If something goes wrong during this installation, a user can end up with an
incomplete installation of ActiveX.