I\'m developing an application using MS Visual C# 2008 Express that uses the ClickOnce deployment functionality. I publish the application to a a server where users can download
The XML file is probably in the ClickOnce data directory (XML files are automatically marked as data files).
Read Accessing Local and Remote Data in ClickOnce Applications (MSDN). It explains how data files are used and accessed using ClickOnce. If you want to publish the XML file as an application file (you want it published to the same directory as the application), follow the steps below:
If you want to use it as a data file, there is an example in the mentioned article.