If the Data Provider assembly is not installed in the GAC on this machine, the files that make up Data Provider need to be copied into the application folder.
To make the application use an updated version of Data Provider, you can do one of the following:
Create an application configuration file with the appropriate redirect.
Rebuild the application against the new Data Provider.
Deploy only the Publisher policy file into the GAC. Doing this causes all references to Data Provider on this machine to use the redirect in the Publisher policy file unless specifically excluded by an application.
