User guide

Installation & Setup User Guide
revision 143 — 321
Recorded Digital Video Ports
Recorded digital video uses DCOM to stream video, which is controlled by
Microsoft using a “find any free port” method. This can be modified using the
DCOMconfig utility to specify the ports that DCOM can use. The following
steps can be followed, but please refer to the Microsoft DCOM documentation
for complete and updated information.
To modify the ports used for recorded video playback, a change must be made in
the DCOMcnfg utility included as part of the Windows operating system.
1. Run the DCOMcnfg utility by typing in “dcomcnfg” from the Run
command on the Start menu.
2. Select the “Default Protocols” tab, which will list all of the protocols DCOM
will use for communication over the network.
3. Modify the ports used by the selecting “Properties” for the “Connection-
oriented TCP/IP” protocol and enter in the list of ports that can be used.