SECURE VS UNSECURE CONNECTION STRING IN MS CRM

Then in the Constructor of your plugin class you will get the configuration value which you can use later in the Execute method:

public abstract class BasePlugin : IPlugin
{
    private string _secureConfig = null;
    private string _unsecureConfig = null;

    public BasePlugin(string unsecureConfig, string secureConfig)
    {
        _secureConfig = secureConfig;
        _unsecureConfig = unsecureConfig;
    }

    public void Execute()
    {
        // Use the configuration here
    }
}

PROS:

·                     The step configuration is solution-aware so it will be automatically transported with the plugin step.

CONS:

·                     You need to use the plugin registration tool or another application to update the step configuration.

·                     The configuration is step-specific so you have to provide it and/or update it for every step even if the value is the same for all the steps (the configuration is on each step instead of the assembly or plugin type).

·                     the configuration is just an attribute of the plugin step so you cannot control privileges on the configuration independently from privileges on plugin step entity.