[Option] /Set propertyPath;value [Description] 
(Optional). Overrides the configuration of a variable, property, container, log provider, Foreach enumerator, or connection within a package. When this option is used, /Set changes the propertyPath argument to the value specified. Multiple /Set options can be specified. You can determine the value of propertyPath by running the Package Configuration Wizard. The paths for items that you select are displayed on the final Completing the Wizard page, and can be copied and pasted. If you have used the wizard only for this purpose, you can cancel the wizard after you copy the paths. The following is an example of executing a package and providing a new value for a variable: dtexec /f mypackage.dtsx /set \package.variables[myvariable].Value;myvalue You can use the /Set option to change the location from which package configurations are loaded. However, you cannot use the /Set option to override a value that was specified by a configuration at design time. To understand how package configurations are applied, see SSIS Package Configurations and Behavior Changes to Integration Services Features in SQL Server 2008 R2.