A couple of days ago i wrote about Easily switching between App.Config files with MSBuild. Christophe Gijbels, a fellow compuwarrior, pointed out that developers usually need to copy more than a single App.Config file… I would propose to add a Folder for each Customer that contains all the specific configuration files. Eg

Now i have to configure MSBuild so that the right files are copied into the OutDir:

<!-- Define the CustomerPath depending on the choosen Configuration -->
<propertyGroup Condition=" $(Configuration) == 'Customer1 Debug' "> <customerPath>Customer1</customerPath> </propertyGroup> <propertyGroup Condition="$(Configuration) == 'Customer2 Debug' ">
<customerPath>Customer2</customerPath>
</propertyGroup>

<!-- Define AppConfig in the CustomerPath  -->
<propertyGroup>
<appConfig>$(CustomerPath)\App.config</appConfig> </propertyGroup> <!-- Find all files in CustomerPath, excluding AppConfig --> <itemGroup> <customerFiles Include="$(CustomerPath)\*.*" Exclude="$(CustomerPath)\App.config" /> </itemGroup> <target Name="AfterBuild"> <copy SourceFiles="@(CustomerFiles)" DestinationFolder="$(OutDir)" SkipUnchangedFiles="true"/>
</target>