Setting up the server for automatic download of ActiveX controls

To set up the server for the automatic download of ActiveX controls, you need to create CAB files that are used by the clients to automatically install the correct version of an ActiveX Control when a display is opened. These CAB files must be located in the ActiveXControlSetup folder of the HMI server that contains the displays that require the ActiveX in question.

To create CAB files you can use the CABARC.exe program that is installed when you install the

FactoryTalk View SE

server software.

The CABARC.exe program is installed in the folder

C:\Users\Public\Public Documents\RSView Enterprise\ActiveX Control Setup

.

This directory also contains these files:

If you have Visual Basic 5.0 you can also use the Application Setup Wizard to create a CAB file. To do this select the Create Internet Download Setup option. For Visual Basic 6.0 use the Package and Deployment Wizard to create an Internet Package. See the Visual Basic documentation for details.

CAB files may contain a

digital signature

that ensures that the CAB file has not been altered since it was built by the company that developed the ActiveX control. Such files are said to be

signed

.

The CAB files that you create do not need to be signed, but by default, unsigned CAB files will not be installed. Also, when downloading signed CAB files from the Internet, the default is to prompt before installation. To prevent clients from being prompted you must change their Internet Explorer settings. For more information, click the related topic, below.