Using RDS Handlers

To use an RDS handler, you need the following two files:

• A handler COM object. ADO provides an out-of-the-box RDS handler (MSDFMAP.HANDLER), or you can write one yourself using Microsoft Visual Basic or C++. See About Writing a Custom Handler. This handler object is registered when you install ADO.
• A customization file. You can customize the behavior of a handler COM object in its .ini (customization) file. A default customization file called MSDFMAP.INI is installed with ADO. You can also write your own customization file; see The Handler Customization File.

To customize the behavior of an RDS handler, you can either change the settings in the customization file (a text file) or write a custom handler COM object. The CML/LitCrit application uses the default RDS handler but uses its own customization file. See The Handler Customization File and Default Handler Customization File.